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发明名称
Perfectionnements aux sélecteurs pour installations de télécommunication, en particulier pour installations téléphoniques
摘要
申请公布号
FR822909(A)
申请公布日期
1938.01.11
申请号
FRD822909
申请日期
1937.06.09
申请人
MIX & GENEST AKTIENGESELLSCHAFT
发明人
分类号
H01H67/06
主分类号
H01H67/06
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代理人
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