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发明名称
摘要
申请公布号
FR2285763(B1)
申请公布日期
1980.01.04
申请号
FR19740031309
申请日期
1974.09.17
申请人
PICART LEBAS TELEPHONES
发明人
分类号
H04M1/23;(IPC1-7):H04M1/23;G06F3/02
主分类号
H04M1/23
代理机构
代理人
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