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发明名称
CIRCUIT DE CLAVIER DE POSTE DE TELEPHONE
摘要
申请公布号
FR2538977(B1)
申请公布日期
1988.12.02
申请号
FR19820022186
申请日期
1982.12.31
申请人
PENA DENIS DE
发明人
分类号
H04M1/272;(IPC1-7):H04M1/30
主分类号
H04M1/272
代理机构
代理人
主权项
地址
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