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发明名称
Inert gas-shielded arc welding apparatus
摘要
申请公布号
US2645703(A)
申请公布日期
1953.07.14
申请号
US19510214545
申请日期
1951.03.08
申请人
ADVANCE TRANSFORMER CO.
发明人
DAHL ROBERT E.
分类号
B23K9/167
主分类号
B23K9/167
代理机构
代理人
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地址
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