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经营范围
发明名称
Improvements in or relating to electrical attenuators
摘要
申请公布号
GB775452(A)
申请公布日期
1957.05.22
申请号
GB19530035222
申请日期
1953.12.17
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;ALFRED GEORGE HAYES
发明人
分类号
H01P1/22
主分类号
H01P1/22
代理机构
代理人
主权项
地址
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