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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0637132 (1975-12-03) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 16 인용 특허 : 0 |
A stationary jack stand for supporting such things as the draw bar end of a trailer has a base, four struts and a cap, capable of ready assembly and disassembly. On the base are four recesses into which are inserted the lower ends of the respective struts. The cap has four pockets much closer togeth
A stationary jack stand comprising a base having a plurality of upwardly open recesses equally spaced from each other at the perimeter, a cap having an equivalent number of downwardly open pockets in a grouping closer together than said recesses in the base, each pocket having two adjoining walls in
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