Seal for evacuated vessels and method of forming the same,申请号US19390258747-传众专利搜索

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发明名称	Seal for evacuated vessels and method of forming the same
摘要
申请公布号	US2202337(A)	申请公布日期	1940.05.28
申请号	US19390258747	申请日期	1939.02.27
申请人	COHN BYRON E	发明人	COHN BYRON E.
分类号	H01J9/40	主分类号	H01J9/40
代理机构		代理人
主权项
地址

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