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发明名称
Pulse modulated speech transmission system
摘要
申请公布号
US2689344(A)
申请公布日期
1954.09.14
申请号
US19510226519
申请日期
1951.05.15
申请人
RICH STANLEY R
发明人
RICH STANLEY R.
分类号
G01S13/86;H03K7/06
主分类号
G01S13/86
代理机构
代理人
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地址
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