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经营范围
发明名称
Procédé d'amorçage d'un arc de soudage
摘要
申请公布号
FR1024166(A)
申请公布日期
1953.03.30
申请号
FRD1024166
申请日期
1950.08.31
申请人
L'AIR LIQUIDE
发明人
分类号
B23K9/067
主分类号
B23K9/067
代理机构
代理人
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