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经营范围
发明名称
Pulse transmission system
摘要
申请公布号
US3042751(A)
申请公布日期
1962.07.03
申请号
US19590798404
申请日期
1959.03.10
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GRAHAM ROBERT S.
分类号
H04B14/02;H04J3/07
主分类号
H04B14/02
代理机构
代理人
主权项
地址
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