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发明名称
Improvements in the control of radio and sound reproducing apparatus and the like
摘要
申请公布号
GB341892(A)
申请公布日期
1931.01.22
申请号
GB19290032006
申请日期
1929.10.22
申请人
MAINS RADIO GRAMOPHONES LIMITED;EDWARD HENRY ROBERTS
发明人
分类号
H03G3/16
主分类号
H03G3/16
代理机构
代理人
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