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经营范围
发明名称
DIGITAL FREQUENCY METER
摘要
申请公布号
GB1509032(A)
申请公布日期
1978.04.26
申请号
GB19750017713
申请日期
1976.04.26
申请人
CONTROLOGY TECH LTD
发明人
分类号
G01R19/22;G01R23/02;H03M1/00;(IPC1-7):H03K13/02
主分类号
G01R19/22
代理机构
代理人
主权项
地址
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