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发明名称
Dual encoder for pcm
摘要
申请公布号
US3073904(A)
申请公布日期
1963.01.15
申请号
US19590824731
申请日期
1959.07.02
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
DAVIS CLAUDE G.
分类号
H03M1/00;H04B14/04;H04J3/10
主分类号
H03M1/00
代理机构
代理人
主权项
地址
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