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发明名称
Perfectionnements aux postes téléphoniques
摘要
申请公布号
FR1052695(A)
申请公布日期
1954.01.26
申请号
FRD1052695
申请日期
1952.03.21
申请人
发明人
RANKY BELA;LARCHEZ MARCEL
分类号
H01H35/02;H04M1/03
主分类号
H01H35/02
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