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发明名称
TELEPHONE INSTRUMENT FOR VOICE FREQUENCY CHOICE OR NUMBER
摘要
申请公布号
CA912720(A)
申请公布日期
1972.10.17
申请号
CAD912720
申请日期
申请人
TELEFONAKTIEBOLAGET LM ERICSSON
发明人
HERMAN J. B. VOLLMER
分类号
H04M1/50;(IPC1-7):H04M1/50
主分类号
H04M1/50
代理机构
代理人
主权项
地址
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