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发明名称
Verfahren zur Herstellung geschweisster Rohrverbindungen
摘要
申请公布号
DE504213(C)
申请公布日期
1930.08.01
申请号
DE1929S089475D
申请日期
1929.01.22
申请人
HERMANN SEELBACH
发明人
分类号
B23K33/00;F16L13/02
主分类号
B23K33/00
代理机构
代理人
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