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发明名称
Hoist
摘要
申请公布号
US2148932(A)
申请公布日期
1939.02.28
申请号
US19380188388
申请日期
1938.02.02
申请人
FISHER ROBERT E
发明人
FISHER ROBERT E.
分类号
B60P1/44
主分类号
B60P1/44
代理机构
代理人
主权项
地址
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