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发明名称
Portable spot welding apparatus
摘要
申请公布号
US2238679(A)
申请公布日期
1941.04.15
申请号
US19390290298
申请日期
1939.08.15
申请人
FRANK COOPER EDWARD
发明人
COOPER EDWARD FRANK
分类号
B23K11/31
主分类号
B23K11/31
代理机构
代理人
主权项
地址
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