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发明名称
Radio tuning means
摘要
申请公布号
US2489544(A)
申请公布日期
1949.11.29
申请号
US19470774868
申请日期
1947.09.18
申请人
GENERAL MOTORS CORPORATION
发明人
SCHWARZ BERTRAM A.;STELZL HOWARD M.;WRIGHT MANFRED G.
分类号
H03J1/06;H03J5/12
主分类号
H03J1/06
代理机构
代理人
主权项
地址
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