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发明名称
Free chain hoist
摘要
申请公布号
US1999036(A)
申请公布日期
1935.04.23
申请号
US19340736280
申请日期
1934.07.21
申请人
COFFING FREDRICK W
发明人
COFFING FREDRICK W.
分类号
B66D3/16
主分类号
B66D3/16
代理机构
代理人
主权项
地址
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