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经营范围
发明名称
TELEPHONE SYSTEM
摘要
申请公布号
JPH042251(A)
申请公布日期
1992.01.07
申请号
JP19900103366
申请日期
1990.04.19
申请人
CANON INC
发明人
WATABE MITSUSUKE
分类号
G06K17/00;H04M1/00;H04M3/42;H04M11/00;(IPC1-7):H04M3/42
主分类号
G06K17/00
代理机构
代理人
主权项
地址
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