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发明名称
ELECTRICAL OSCILLATION GENERATOR AND TIME BASE
摘要
申请公布号
CA446263(A)
申请公布日期
1948.01.20
申请号
CAD446263
申请日期
申请人
CANADIAN MARCONI COMPANY
发明人
NORMAN LAURENCE YATES-FISH
分类号
主分类号
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