METHOD OF PRODUCING GRIDS FOR ELECTRON TUBES,申请号USD3531839-传众专利搜索

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发明名称	METHOD OF PRODUCING GRIDS FOR ELECTRON TUBES
摘要
申请公布号	US3531839(A)	申请公布日期	1970.10.06
申请号	USD3531839	申请日期	1967.01.26
申请人	HITACHI SEISAKUSHO:KK.	发明人	HIDEO IWAYANAGI
分类号	H01J19/00;H01J19/38;(IPC1-7):H01J9/18;H01J9/36	主分类号	H01J19/00
代理机构		代理人
主权项
地址

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