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发明名称
Improved device for simplifying welding operations in connection with the joining of pipe parts, particularly end flanges of bent pipes
摘要
申请公布号
GB951371(A)
申请公布日期
1964.03.04
申请号
GB19620040657
申请日期
1962.10.26
申请人
AKTIEBOLAGET GOTAVERKEN
发明人
分类号
B23K9/028
主分类号
B23K9/028
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代理人
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