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发明名称
Ratcheted lift mechanism
摘要
The present invention is related generally to hoists, and more particularly to a hoist system for safely raising, storing, and lowering loads.
申请公布号
US2008017839(A1)
申请公布日期
2008.01.24
申请号
US20070879998
申请日期
2007.07.19
申请人
发明人
BODA JAMES C.;SCHOFIELD ROBERT T.
分类号
B66D1/14
主分类号
B66D1/14
代理机构
代理人
主权项
地址
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