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经营范围
发明名称
PHASE SHIFTING CIRCUIT
摘要
申请公布号
CA337476(A)
申请公布日期
1933.11.28
申请号
CAD337476
申请日期
申请人
THE CANADIAN GENERAL ELECTRIC COMPANY
发明人
BURNICE D. BEDFORD
分类号
主分类号
代理机构
代理人
主权项
地址
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