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经营范围
发明名称
HIGH FREQUENCY CIRCUIT AND APPARATUS
摘要
申请公布号
CA396073(A)
申请公布日期
1941.04.22
申请号
CAD396073
申请日期
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
NELSON EVERETT SOWERS
分类号
主分类号
代理机构
代理人
主权项
地址
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