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发明名称
DIRECT CURRENT ELECTRIC TRANSMISSION SYSTEMS
摘要
申请公布号
CA516755(A)
申请公布日期
1955.09.20
申请号
CAD516755
申请日期
申请人
E.R.A. PATENTS LIMITED
发明人
FELIX BUSEMANN
分类号
主分类号
代理机构
代理人
主权项
地址
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