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发明名称
Amplifying system
摘要
申请公布号
US1768658(A)
申请公布日期
1930.07.01
申请号
US19260134974
申请日期
1926.09.13
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
BALSLEY JAMES R.
分类号
H03G3/16
主分类号
H03G3/16
代理机构
代理人
主权项
地址
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