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发明名称
PRIVATE BRANCH OF EXCHANGE
摘要
申请公布号
JPH02305261(A)
申请公布日期
1990.12.18
申请号
JP19890126932
申请日期
1989.05.19
申请人
MATSUSHITA ELECTRIC IND CO LTD
发明人
KATAYAMA SUSUMU
分类号
H04M3/42;H04M11/02
主分类号
H04M3/42
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代理人
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