Method and apparatus for manufacture of electron tubes and the like,申请号US19420458176-传众专利搜索

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发明名称	Method and apparatus for manufacture of electron tubes and the like
摘要
申请公布号	US2338507(A)	申请公布日期	1944.01.04
申请号	US19420458176	申请日期	1942.09.12
申请人	SYLVANIA ELECTRIC PRODUCTS INC.	发明人	HAAS PAUL;BENNETT RICHARD G.
分类号	H01J19/46	主分类号	H01J19/46
代理机构		代理人
主权项
地址

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