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经营范围
发明名称
Improvements in or relating to electrical attenuation networks
摘要
申请公布号
GB394715(A)
申请公布日期
1933.07.03
申请号
GB19320000145
申请日期
1932.01.02
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY, LIMITED;HERBERT VICTOR GRIFFITHS;WILLIAM PROCTOR WILSON
发明人
分类号
H03H7/24
主分类号
H03H7/24
代理机构
代理人
主权项
地址
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