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发明名称
Arc welding torch and electrode
摘要
申请公布号
US2554236(A)
申请公布日期
1951.05.22
申请号
US19490079147
申请日期
1949.03.02
申请人
BERNARD ARTHUR A
发明人
BERNARD ARTHUR A.
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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