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经营范围
发明名称
ELECTRIC AMPLIFIER
摘要
申请公布号
US4117418(A)
申请公布日期
1978.09.26
申请号
US19770759480
申请日期
1977.01.14
申请人
HOGLUND, LENNART HARRY ERIK
发明人
HOGLUND, LENNART HARRY ERIK
分类号
H03F1/02;H03F3/68;(IPC1-7):H03F3/04
主分类号
H03F1/02
代理机构
代理人
主权项
地址
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