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发明名称
Answering service arrangements in telephone systems
摘要
申请公布号
US2866007(A)
申请公布日期
1958.12.23
申请号
US19540430693
申请日期
1954.05.18
申请人
GENERAL TELEPHONE LABORATORIES, INCORPORATED
发明人
MURRAY JAMES S.
分类号
H04M3/54
主分类号
H04M3/54
代理机构
代理人
主权项
地址
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