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发明名称
Portable folding hoist
摘要
申请公布号
US2315873(A)
申请公布日期
1943.04.06
申请号
US19410393006
申请日期
1941.05.12
申请人
PHILIP RICHARDS
发明人
RICHARDS PHILIP
分类号
B66C23/20;B66C23/36
主分类号
B66C23/20
代理机构
代理人
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地址
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