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发明名称
Perfectionnements apportés aux potentiomètres
摘要
申请公布号
FR721661(A)
申请公布日期
1932.03.07
申请号
FRD721661
申请日期
1930.11.15
申请人
ATELIERS J. CARPENTIER
发明人
分类号
H01C1/14
主分类号
H01C1/14
代理机构
代理人
主权项
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