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经营范围
发明名称
Electrostatic amplifier
摘要
申请公布号
US2696530(A)
申请公布日期
1954.12.07
申请号
US19510225518
申请日期
1951.05.10
申请人
KERNS QUENTIN A
发明人
KERNS QUENTIN A.
分类号
H03F11/00
主分类号
H03F11/00
代理机构
代理人
主权项
地址
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