DIRECT CURRENT ELECTRICAL SUPPLY SYSTEMS,申请号CAD506781-传众专利搜索

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发明名称	DIRECT CURRENT ELECTRICAL SUPPLY SYSTEMS
摘要
申请公布号	CA506781(A)	申请公布日期	1954.10.26
申请号	CAD506781	申请日期
申请人	THE ELECTRIC CONSTRUCTION COMPANY LIMITED	发明人	JOHN C. MILNE
分类号		主分类号
代理机构		代理人
主权项
地址

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