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Modular display rack systems, which are easily configurable, have interchangeable components, and are capable of being packaged and shipped in small containers, are described. Preferred methods for using modular display rack systems are also disclosed. In some of the embodiments disclosed, one or mo

Modular display rack systems, which are easily configurable, have interchangeable components, and are capable of being packaged and shipped in small containers, are described. Preferred methods for using modular display rack systems are also disclosed. In some of the embodiments disclosed, one or more ladder racks are used to erect a single tower modular display rack, a two tower modular display rack and so forth. Each ladder rack used to construct the modular display rack system may include a support base pivotally attached via a pivot pin to a lower portion of the ladder rack. The support base supports the load of the ladder rack and the modular display rack system and also pivots to a folded position if desired.

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1. A modular display rack system for displaying merchandise items comprising two ladder racks removably connected together by at least one horizontal bar, wherein the two ladder racks each comprises two vertical braces with each vertical brace comprising a side edge, wherein a base bar comprising a

1. A modular display rack system for displaying merchandise items comprising two ladder racks removably connected together by at least one horizontal bar, wherein the two ladder racks each comprises two vertical braces with each vertical brace comprising a side edge, wherein a base bar comprising a first end and a second end pivotally attaches to a lower end of the two vertical braces via a pivot pin such that the first end and the second end of the bar extend away from the lower end of the two vertical braces; and wherein the base bar is pivotable between a first position and a second position about the pivot pin.2. The modular display rack system of claim 1, further comprising a third ladder rack removably attached to the first two ladder racks by a second at least one horizontal bar.3. The modular display rack system of claim 1, further comprising a flange and a resilient member, both the flange and the resilient member are mountable over the pivot pin, and wherein the resilient member urges the flange against the base bar and the flange engages the base bar to fix the base bar from pivoting.4. The modular display rack system of claim 1, further comprising means for limiting the base bar from pivoting.5. The modular display rack system of claim 1, further comprising a plurality of sets of cross braces with each set comprising two individual cross-braces; wherein the plurality of sets of cross braces are connected to the two vertical braces of each ladder rack.6. The modular display rack system of claim 1, wherein the at least one horizontal bar comprises an upper horizontal bar and a lower horizontal bar, wherein the upper horizontal bar comprises two ends and wherein each end comprises a flange and wherein each flange engages a receiving channel positioned on each of the ladder rack.7. The modular display rack system of claim 1, further comprising plurality of peripheral devices removably attached to at least one of the ladder racks or the at least one horizontal bar.8. A modular display rack system for displaying merchandise items comprising:a first end ladder rack comprising a first vertical brace having an inwardly facing surface and an outwardly facing surface and a second vertical brace having an inwardly facing surface and an outwardly facing surface; a plurality of cross braces connected to the inwardly facing surfaces of the first and second vertical braces of the first end ladder rack; a retaining aperture located on a lower portion of the inwardly facing surface of each of the first and second vertical braces; a blase bar for supporting the first end ladder rack pivotally attached to the retaining aperture of each of the first and second vertical braces via a pivot pin; the base bar is moveable between a first position and a second position about the pivot pin; and wherein the first end ladder rack is removably attached to a second end ladder rack or a center ladder rack by a support bar, the support bar supporting the first end ladder rack and either the second end ladder rack or the center ladder rack laterally. 9. The modular display rack system of claim 8, wherein the support bar comprises two engaging flanges on its two ends, and wherein each of the two engaging flanges engages with a receiving channel positioned on the outwardly facing surface of the first end ladder rack and an outwardly facing surface on either the second end ladder rack or the center ladder rack.10. The modular display rack system of claim 8, wherein the plurality of cross braces connect with the inwardly facing surfaces of the first and second vertical braces of the first end ladder rack at a plurality of cross brace locations, and wherein each cross brace location comprises at least two individual cross braces.11. The modular display rack system of claim 8, further comprising a flange and a resilient member, wherein the pivot pin passes through the flange and the resilient member, and wherein the resilient member urges the flange against the base bar.12. The modular display rack system of claim 8, further comprising a peripheral device, the peripheral device comprising an arm device for supporting hangers and an engagement bracket positioned at an end of the arm device for removably attaching to the modular display rack system.13. The modular display rack system of claim 8, further comprising a shelf peripheral device or a wire-meshed basket peripheral device removably attaching to the modular display rack system.14. The modular display rack of claim 8, further comprising a second base bar pivotally attached to the either the second end ladder rack or the center ladder rack.15. A method for erecting a modular display rack comprising:attaching a first end ladder rack to either a second end ladder rack or center ladder rack using a support bar; the first end ladder rack comprising two vertical braces attached to one another by a plurality of cross braces; moving a base bar comprising two ends pivotally attached to the end ladder rack via a pivot pin from a first position to a second position; fixing the base bar from pivotally rotating from the second position; and wherein one of the two ends of the base bar moves from a spaced apart position from one of the cross braces to a closer position to the one of the cross braces when the base bar moves from the first position to the second position. 16. The method of claim 15, further comprising the step of attaching a cross brace to a lower portion of the first end ladder rack and either the second end ladder or the center ladder rack by sliding an opening at both ends of the cross brace over a joining bracket located on the lower portion of the first end ladder rack and either the second end ladder rack or the center ladder rack.17. The method of claim 15, wherein the base bar is fixed from rotation by using a resilient member to urge a flange against the base bar, and wherein the flange comprises a tab engaging a locking aperture located on the base bar.18. The method of claim 15, wherein the base bar is axially positioned on the pivot pin by a pair of clamp members.19. The method of claim 15, wherein the base bar comprises at least two casters.20. The method of claim 15, further comprising a peripheral device removably attached to the modular display rack for displaying merchandise items.21. A modular display rack comprising:an upper rack portion comprising at least two ladder racks, each ladder rack comprising two vertical braces attached to one another by a plurality of paired cross-braces; each paired cross-brace comprising two individual cross braces separated from one another by a gap; a lower base portion comprising at least two stabilizer bars, each stabilizer bar comprising a top surface, a side surface, and a joining bracket attached proximate the aide surface; a cross-bar fastened to the two joining brackets to secure the at least two stabilizer bars together; a lateral support bar removably engaged to the at least two ladder racks to mechanically couple the at least two ladder racks to one mother, and wherein the at least two ladder racks are fastened to the at least two stabilizer bars to fasten the upper rack portion to the lower base portion. 22. The modular display rack of claim 21, wherein the cross-bar comprises a two open ends, wherein the two open ends are positioned over the joining brackets.23. The modular display rack of claim 22, further comprising a plurality of fasteners, wherein the plurality of fasteners fasten the cross-bar to the joining brackets.24. The modular display rack of claim 21, wherein at least one vertical brace of each ladder rack comprises at least one receiving channel comprising a base, two sides, and an open receiving slot.25. The modular display rack of claim 24, wherein the lateral support bar comprises two end flanges with each end flange comprising an engagement tip.26. The modular display rack of claim 25, wherein the two engagement tips of the lateral support bar engage the two open receiving slots of the at least two ladder racks.27. The modular display rack of claim 21, wherein each stabilizer bar comprises and elongated bar section and a load bearing section positioned centrally of the elongated bar section.28. The modular display rack of claim 27, wherein the joining bracket of each stabilizer bar is attached to the load bearing section.