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发明名称
Private branch exchange telephone system involving a cordless type switchboard
摘要
申请公布号
US2993095(A)
申请公布日期
1961.07.18
申请号
US19590805585
申请日期
1959.04.10
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
ARNOLD PHILIP H.;DESNOES ARNOLD B.;STEWART G. DOUGLASS;WOOD EDSON R.
分类号
H04M9/00
主分类号
H04M9/00
代理机构
代理人
主权项
地址
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