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经营范围
发明名称
Improvements in or relating to telegraph signal regenerators
摘要
申请公布号
GB531820(A)
申请公布日期
1941.01.13
申请号
GB19390013851
申请日期
1939.05.09
申请人
CREED AND COMPANY LIMITED;FREDERICK PERCIVAL MASON;WILLIAM ARTHUR MITCHELL;BRIAN JOHN PLEASS
发明人
分类号
H04L25/04;H04L25/06
主分类号
H04L25/04
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