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经营范围
发明名称
WAVE METER, OSCILLATOR, ETC.
摘要
申请公布号
CA332296(A)
申请公布日期
1933.05.09
申请号
CAD332296
申请日期
申请人
THE CANADIAN MARCONI COMPANY
发明人
THOMAS DIXON PARKIN
分类号
主分类号
代理机构
代理人
主权项
地址
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