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In a shelving system having both vertical and oblique supports for removable shelves, identical shelves are interchangeably usable on either support by reason of the fact that mounting slots on the oblique support are farther apart than the mounting slots on the vertical support. The tabs on the she

In a shelving system having both vertical and oblique supports for removable shelves, identical shelves are interchangeably usable on either support by reason of the fact that mounting slots on the oblique support are farther apart than the mounting slots on the vertical support. The tabs on the shelves cooperate with these slots in two different ways, depending on the slot spacing, thereby automatically insuring the proper shelf orientation, irrespective of the support.

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A system of shelving wherein identical shelves may be mounted interchangeably on supporting members having surfaces disposed at different angles relative to the horizontal, said system comprising: a first support having a planar front surface disposed at a first angle with respect to the horizontal

A system of shelving wherein identical shelves may be mounted interchangeably on supporting members having surfaces disposed at different angles relative to the horizontal, said system comprising: a first support having a planar front surface disposed at a first angle with respect to the horizontal and having a first series of uniformly spaced slots extending in the vertical direction on said surface; a second support having a planar front surface disposed at a second angle with respect to the horizontal, said second angle being different from said first angle, and having a second series of uniformly spaced slots extending in the vertical direction on said surface, the spacing of the slots in said second series being different from the spacing of the slots in said first series; and a shelf having at its rear a first tab provided with a projection extendible through one of said slots on either support and engageable with the rear wall of the support in which said one of said slots is located, said shelf also including first means adapted to abut the front surface of said first support, and a second tab located below said first tab, said second tab having a surface spaced horizontally away from said first means and adapted to abut the front surface of said second support, said tabs being spaced from each other in relation to the spacing of the slots on said supports, and said first means and said surface of said second tab being configured so that, when on the first support, said shelf is necessarily positioned with the first means abutting the front surface of said first support, and when on said second support, said shelf is necessarily positioned with said surface of said second tab abutting the front surface of said second support.