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发明名称
Appareil de sécurité pour torches de soudage à l'arc en gaz protecteur, refroidies par eau
摘要
申请公布号
FR998650(A)
申请公布日期
1952.01.21
申请号
FRD998650
申请日期
1949.09.30
申请人
L'AIR LIQUIDE
发明人
分类号
B23K9/16
主分类号
B23K9/16
代理机构
代理人
主权项
地址
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