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发明名称
Tap wrench guide
摘要
申请公布号
US2793377(A)
申请公布日期
1957.05.28
申请号
US19530358280
申请日期
1953.05.29
申请人
发明人
分类号
B23G1/48
主分类号
B23G1/48
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代理人
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地址
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