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发明名称
High frequency amplifier
摘要
申请公布号
US1808150(A)
申请公布日期
1931.06.02
申请号
US19270230311
申请日期
1927.11.01
申请人
TOWNSEND PERCIVAL J
发明人
TOWNSEND PERCIVAL J.
分类号
H04B1/16
主分类号
H04B1/16
代理机构
代理人
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地址
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