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发明名称
Improvements in or relating to pulse-code-modulation signalling systems
摘要
申请公布号
GB728436(A)
申请公布日期
1955.04.20
申请号
GB19510014895
申请日期
1951.06.22
申请人
PHILIPS ELECTRICAL INDUSTRIES LIMITED
发明人
分类号
H04J3/06
主分类号
H04J3/06
代理机构
代理人
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