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发明名称
Perfectionnements aux contacts à grande fréquence de fonctionnement, en particulier pour redresseurs pendulaires
摘要
申请公布号
FR862236(A)
申请公布日期
1941.03.01
申请号
FRD862236
申请日期
1939.12.12
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H02M7/36
主分类号
H02M7/36
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代理人
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