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发明名称
摘要
申请公布号
FR2346916(B1)
申请公布日期
1981.01.09
申请号
FR19770007844
申请日期
1977.03.16
申请人
HASLER AG
发明人
分类号
H04Q11/04;H04M7/12;H04M9/02;(IPC1-7):H04L11/20
主分类号
H04Q11/04
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