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发明名称
Perfectionnements apportés aux procédés et dispositifs pour la soudure électrique
摘要
申请公布号
FR863983(A)
申请公布日期
1941.04.15
申请号
FRD863983
申请日期
1939.11.03
申请人
发明人
ROYER
分类号
B23K9/167
主分类号
B23K9/167
代理机构
代理人
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