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发明名称
Improvements in radio receiving apparatus
摘要
申请公布号
GB313414(A)
申请公布日期
1930.08.14
申请号
GB19290017837
申请日期
1929.06.10
申请人
LEON LADISLAS DE KRAMOLIN
发明人
分类号
H03D7/10
主分类号
H03D7/10
代理机构
代理人
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