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经营范围
发明名称
Breitbandverstaerker
摘要
申请公布号
DE763749(C)
申请公布日期
1953.05.04
申请号
DE1938H155706D
申请日期
1938.05.04
申请人
HAZELTINE CORPORATION
发明人
CAWEIN MADISON
分类号
H03F1/50
主分类号
H03F1/50
代理机构
代理人
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