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经营范围
发明名称
FREQUENCY STABILISERS AND MONITORS
摘要
申请公布号
CA603179(A)
申请公布日期
1960.08.09
申请号
CAD603179
申请日期
申请人
CANADIAN MARCONI COMPANY
发明人
NORMAN LEA
分类号
主分类号
代理机构
代理人
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