发明名称 Ladder adjustment apparatus
摘要 A ladder adjustment apparatus (10) which is designed to be secured to the rungs (101) of a ladder (100) whereby the apparatus (10) may be laterally shifted on the rungs (101) to position the apparatus (10) adjacent either leg (102) of the ladder without the need for physically detaching the apparatus (10) from the ladder (100).
申请公布号 US4984655(A) 申请公布日期 1991.01.15
申请号 US19900483846 申请日期 1990.02.23
申请人 SCHERER, MARK D.;HOY, THOMAS A. 发明人 SCHERER, MARK D.;HOY, THOMAS A.
分类号 E06C7/44 主分类号 E06C7/44
代理机构 代理人
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