发明名称 Adjustable hole-engaging hook device
摘要 An adjustable hole-engaging hook device has a body connectable to a pulling element, such as a chain, and a hook assembly mounted on the body and arrangeable in a hole as conventionally provided in a vehicle frame member for permitting a force to be exerted on the frame of the vehicle. A gripping arrangement is provided on the body of the device for positively engaging the vehicle frame member which is provided with a hole in which the hook assembly is removably engageable.
申请公布号 US4167108(A) 申请公布日期 1979.09.11
申请号 US19770837409 申请日期 1977.09.28
申请人 JARMAN, DAVIS R.;HINSON, VIRGIL H. 发明人 JARMAN, DAVIS R.;HINSON, VIRGIL H.
分类号 B21D1/12;B60D1/18;B60P3/12;(IPC1-7):B21D31/00 主分类号 B21D1/12
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