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发明名称
Extension handle for wrenches
摘要
申请公布号
US2490739(A)
申请公布日期
1949.12.06
申请号
US19470719767
申请日期
1947.01.02
申请人
NESBITT CHARLES H
发明人
NESBITT CHARLES H.
分类号
B25G1/04
主分类号
B25G1/04
代理机构
代理人
主权项
地址
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