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发明名称
Gas-arc welding apparatus
摘要
申请公布号
US2444767(A)
申请公布日期
1948.07.06
申请号
US19440537789
申请日期
1944.05.29
申请人
GENERAL ELECTRIC COMPANY
发明人
COBEAN RICHARD W.
分类号
B23K9/29
主分类号
B23K9/29
代理机构
代理人
主权项
地址
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