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经营范围
发明名称
TELEPHONE EXCHANGE
摘要
申请公布号
JPH04329742(A)
申请公布日期
1992.11.18
申请号
JP19910128362
申请日期
1991.05.01
申请人
CANON INC
发明人
TABEDA HIDEYA
分类号
H04M3/42;H04M3/50;H04M3/533
主分类号
H04M3/42
代理机构
代理人
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