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发明名称
MODULATED CARRIER WAVE TRANSMITTER
摘要
申请公布号
CA383820(A)
申请公布日期
1939.09.05
申请号
CAD383820
申请日期
申请人
CANADIAN MARCONI COMPANY
发明人
WILLIAM THEODORE DITCHAM
分类号
主分类号
代理机构
代理人
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