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经营范围
发明名称
TELEPHONE EXCHANGE
摘要
申请公布号
JPH01205654(A)
申请公布日期
1989.08.18
申请号
JP19880028965
申请日期
1988.02.12
申请人
CANON INC
发明人
TAKASHIMA SHOICHI
分类号
H04M3/54
主分类号
H04M3/54
代理机构
代理人
主权项
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