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经营范围
发明名称
APPARATUS FOR ELECTRICAL FREQUENCY MEASUREMENT
摘要
申请公布号
CA562314(A)
申请公布日期
1958.08.26
申请号
CAD562314
申请日期
申请人
CINEMA-TELEVISION LIMITED
发明人
GEORGE S. ELPHICK
分类号
主分类号
代理机构
代理人
主权项
地址
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