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经营范围
发明名称
Improvements in or relating to thermionic oscillation generators
摘要
申请公布号
GB420830(A)
申请公布日期
1934.12.10
申请号
GB19330016486
申请日期
1933.06.08
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;THOMAS DIXON PARKIN
发明人
分类号
H03B5/34
主分类号
H03B5/34
代理机构
代理人
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