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发明名称
Method of protecting power amplifier tubes
摘要
申请公布号
US1955352(A)
申请公布日期
1934.04.17
申请号
US19310572379
申请日期
1931.10.31
申请人
WALLACE JAMES D
发明人
WALLACE JAMES D.
分类号
H04L27/04
主分类号
H04L27/04
代理机构
代理人
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