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发明名称
Jumelles téléphoniques
摘要
申请公布号
FR971882(A)
申请公布日期
1951.01.23
申请号
FRD971882
申请日期
1939.11.29
申请人
发明人
ABADIE JEAN-BAPTISTE-JOSEPH
分类号
H04B10/11
主分类号
H04B10/11
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