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发明名称
Improvements in and relating to tuning means for radio receiving sets
摘要
申请公布号
GB370413(A)
申请公布日期
1932.03.31
申请号
GB19300039280
申请日期
1930.12.31
申请人
KURT MARGGRAF
发明人
分类号
H03J3/28
主分类号
H03J3/28
代理机构
代理人
主权项
地址
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