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经营范围
发明名称
CLASS B AMPLIFIER
摘要
申请公布号
CA354256(A)
申请公布日期
1935.11.19
申请号
CAD354256
申请日期
申请人
THE CANADIAN WESTINGHOUSE COMPANY
发明人
PERRY H. OSBORN;LEROY R. HARNESS
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主分类号
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