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发明名称
Electric welding apparatus
摘要
申请公布号
US2982843(A)
申请公布日期
1961.05.02
申请号
US19590824625
申请日期
1959.07.02
申请人
UNIVERSAL-CYCLOPS STEEL CORPORATION
发明人
JR. ALEXANDER L. FEILD,
分类号
B23K9/173
主分类号
B23K9/173
代理机构
代理人
主权项
地址
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