APPARATUS FOR WINDING HELICAL WIRE GRIDS FOR ELECTRON TUBES,申请号CAD661811-传众专利搜索

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发明名称	APPARATUS FOR WINDING HELICAL WIRE GRIDS FOR ELECTRON TUBES
摘要
申请公布号	CA661811(A)	申请公布日期	1963.04.23
申请号	CAD661811	申请日期
申请人	RADIO CORPORATION OF AMERICA	发明人	OTTO H. SCHADE, SR.
分类号		主分类号
代理机构		代理人
主权项
地址

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