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经营范围
发明名称
TELEPHONE SYSTEM
摘要
申请公布号
JPH03102949(A)
申请公布日期
1991.04.30
申请号
JP19890241115
申请日期
1989.09.18
申请人
TOSHIBA CORP
发明人
MURAYAMA TADASHI
分类号
H04M1/274;H04M1/2745;H04M1/275
主分类号
H04M1/274
代理机构
代理人
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地址
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