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发明名称
ELECTRICAL SYSTEMS
摘要
申请公布号
CA473446(A)
申请公布日期
1951.05.08
申请号
CAD473446
申请日期
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
ARTHUR H. DICKINSON
分类号
主分类号
代理机构
代理人
主权项
地址
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