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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
GB492278(A)
申请公布日期
1938.09.16
申请号
GB19370007682
申请日期
1937.03.16
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED;DAVID JOHN FEWINGS
发明人
分类号
H03K4/86
主分类号
H03K4/86
代理机构
代理人
主权项
地址
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