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发明名称
Perfectionnements aux sélecteurs
摘要
申请公布号
FR817336(A)
申请公布日期
1937.09.01
申请号
FRD817336
申请日期
1937.02.03
申请人
TELEFONAKTIEBOLAGET L. M. ERICSSON
发明人
分类号
H01H67/12
主分类号
H01H67/12
代理机构
代理人
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