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发明名称
Improvements in and relating to electric pulse signalling systems
摘要
申请公布号
GB638897(A)
申请公布日期
1950.06.14
申请号
GB19480003276
申请日期
1948.02.04
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;LESLIE IVAN FARREN;NORMAN EDWIN HEAD;MAURICE MOISE LEVY
发明人
分类号
H01J31/04;H04J3/04
主分类号
H01J31/04
代理机构
代理人
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