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发明名称
Multiparty ringing selection circuit
摘要
申请公布号
US3391253(A)
申请公布日期
1968.07.02
申请号
US19650442607
申请日期
1965.03.25
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GRANDMAISON JOHN P.
分类号
H04Q5/02
主分类号
H04Q5/02
代理机构
代理人
主权项
地址
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