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发明名称
Perfectionnements aux dispositifs commutateurs pouvant être utilisés par exemple dans les systèmes téléphoniques automatiques
摘要
申请公布号
FR845611(A)
申请公布日期
1939.08.29
申请号
FRD845611
申请日期
1938.11.04
申请人
LE MATERIEL TELEPHONIQUE
发明人
分类号
H01H67/06
主分类号
H01H67/06
代理机构
代理人
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地址
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