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发明名称
VOICE TERMINAL CHANGEOVER DEVICE
摘要
申请公布号
JPH02308645(A)
申请公布日期
1990.12.21
申请号
JP19890129769
申请日期
1989.05.23
申请人
NIPPON I N S:KK
发明人
NAKAGAWA KOHEI;TANAKA SHIRO
分类号
H04M1/00;H04M11/00
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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