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发明名称
AUTOMATIC FREQUENCY CONTROL SYSTEMS
摘要
申请公布号
CA546820(A)
申请公布日期
1957.10.01
申请号
CAD546820
申请日期
申请人
CANADIAN MARCONI COMPANY
发明人
FREDERICK I. RICKABY
分类号
主分类号
代理机构
代理人
主权项
地址
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