Focusing device for electron microscopes,申请号US19480002074-传众专利搜索

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发明名称	Focusing device for electron microscopes
摘要
申请公布号	US2632115(A)	申请公布日期	1953.03.17
申请号	US19480002074	申请日期	1948.01.13
申请人	COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL	发明人	BRUCK HENRI
分类号	H01J37/21	主分类号	H01J37/21
代理机构		代理人
主权项
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