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发明名称
Volume-control means for radioreceivers and the like
摘要
申请公布号
US1799000(A)
申请公布日期
1931.03.31
申请号
US19280320369
申请日期
1928.11.19
申请人
GENERAL ELECTRIC COMPANY
发明人
BRADBURY BURKE
分类号
H03G3/16
主分类号
H03G3/16
代理机构
代理人
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地址
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