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发明名称
Perfectionnement aux machines à souder par courant haute fréquence
摘要
申请公布号
FR1054685(A)
申请公布日期
1954.02.12
申请号
FRD1054685
申请日期
1952.04.19
申请人
发明人
DOYEN LEON;DOYEN LOUIS
分类号
B23K11/31;H03B19/00
主分类号
B23K11/31
代理机构
代理人
主权项
地址
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