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发明名称
Improvements in or relating to communication systems
摘要
申请公布号
GB972770(A)
申请公布日期
1964.10.14
申请号
GB19610039262
申请日期
1961.11.02
申请人
THE GENERAL ELECTRIC COMPANY LIMITED
发明人
THOMAS EDWARD REGINALD
分类号
G02B6/32
主分类号
G02B6/32
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代理人
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