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经营范围
发明名称
Improvements in or relating to electrical oscillation generators
摘要
申请公布号
GB513679(A)
申请公布日期
1939.10.19
申请号
GB19380005004
申请日期
1938.02.17
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;JOHN FORREST RAMSAY
发明人
分类号
H03B5/18;H03J9/00
主分类号
H03B5/18
代理机构
代理人
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