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经营范围
发明名称
Improvements in or relating to electrical systems for forming accurately timed signal pulses
摘要
申请公布号
GB485999(A)
申请公布日期
1938.05.23
申请号
GB19380003276
申请日期
1936.11.23
申请人
PHILCO RADIO AND TELEVISION CORPORATION
发明人
分类号
H04N5/073
主分类号
H04N5/073
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代理人
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