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发明名称
Improvements relating to radio signalling systems
摘要
申请公布号
GB377763(A)
申请公布日期
1932.08.04
申请号
GB19310013418
申请日期
1931.05.06
申请人
PETER PENDLETON ECKERSLEY
发明人
分类号
H03C1/20
主分类号
H03C1/20
代理机构
代理人
主权项
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