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发明名称
Wave amplification
摘要
申请公布号
US2223506(A)
申请公布日期
1940.12.03
申请号
US19370173749
申请日期
1937.11.10
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BLACK HAROLD S.
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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