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发明名称
Tube welding machine
摘要
申请公布号
US2835783(A)
申请公布日期
1958.05.20
申请号
US19540453182
申请日期
1954.08.31
申请人
THE YOUNGSTOWN WELDING & ENGINEERING COMPANY
发明人
WATSON CHARLES G.
分类号
B23K9/025
主分类号
B23K9/025
代理机构
代理人
主权项
地址
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