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发明名称
Welding method and apparatus
摘要
申请公布号
US2794108(A)
申请公布日期
1957.05.28
申请号
US19550479721
申请日期
1955.01.04
申请人
GERALD H. PETERSON
发明人
PARK HARWOOD E.
分类号
B23K13/04
主分类号
B23K13/04
代理机构
代理人
主权项
地址
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