Protective shield for electron gun,申请号US19640380746-传众专利搜索

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发明名称	Protective shield for electron gun
摘要
申请公布号	US3322930(A)	申请公布日期	1967.05.30
申请号	US19640380746	申请日期	1964.07.07
申请人	WELDING RESEARCH, INC.	发明人	SCIAKY DAVID
分类号	H01J37/02;H01J37/065;H01J37/067;H01J37/07	主分类号	H01J37/02
代理机构		代理人
主权项
地址

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