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发明名称
Electric welding tongs
摘要
申请公布号
US2178292(A)
申请公布日期
1939.10.31
申请号
US19380210852
申请日期
1938.05.31
申请人
THIBODEAU CHRISTOPHER G
发明人
THIBODEAU CHRISTOPHER G.
分类号
B23K9/28
主分类号
B23K9/28
代理机构
代理人
主权项
地址
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