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发明名称
Band discriminating means and method
摘要
申请公布号
US2178072(A)
申请公布日期
1939.10.31
申请号
US19370133114
申请日期
1937.03.26
申请人
THOMAS A. EDISON, INCORPORATED
发明人
FRITZINGER GEORGE H.
分类号
H03F1/36
主分类号
H03F1/36
代理机构
代理人
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地址
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