发明名称 WHEEL CHOCK
摘要 A wheel chock for engaging opposite sides of a wheel to prevent rolling in either direction is provided by a pair of spaced wedge-like blocks that are secured together in pre-spaced relation by a hoop-like bar of resilient steel that operates to maintain the blocks in position while permitting flexing of the hoop to effect removal of the blocks from opposite sides of a wheel.
申请公布号 US3684060(A) 申请公布日期 1972.08.15
申请号 USD3684060 申请日期 1970.10.12
申请人 POWER PARTS CO. 发明人 JAMES B. WADDLE
分类号 B61K7/20;(IPC1-7):B61H7/02 主分类号 B61K7/20
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