Cathode-ray tube envelope,申请号US19490130299-传众专利搜索

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发明名称	Cathode-ray tube envelope
摘要
申请公布号	US2691457(A)	申请公布日期	1954.10.12
申请号	US19490130299	申请日期	1949.11.30
申请人	SYLVANIA ELECTRIC PRODUCTS INC.	发明人	LONGACRE HENRY C. M.
分类号	C03C27/02;H01J9/26	主分类号	C03C27/02
代理机构		代理人
主权项
地址

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