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发明名称
ARC WELDING
摘要
申请公布号
CA646024(A)
申请公布日期
1962.07.31
申请号
CAD646024
申请日期
申请人
AIR REDUCTION COMPANY
发明人
ROGER W. TUTHILL
分类号
主分类号
代理机构
代理人
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