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发明名称
ELECTRICAL TUNING DEVICE
摘要
申请公布号
CA440396(A)
申请公布日期
1947.03.25
申请号
CAD440396
申请日期
申请人
CANADIAN WESTINGHOUSE COMPANY
发明人
ASHLEY P. BOCK
分类号
主分类号
代理机构
代理人
主权项
地址
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