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发明名称
Compound tool
摘要
申请公布号
US2199899(A)
申请公布日期
1940.05.07
申请号
US19390279189
申请日期
1939.06.14
申请人
WATSON WILLIAM F
发明人
WATSON WILLIAM F.
分类号
B25F1/04
主分类号
B25F1/04
代理机构
代理人
主权项
地址
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