Electron microscope comprising magnetic focusing,申请号US19470725669-传众专利搜索

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发明名称	Electron microscope comprising magnetic focusing
摘要
申请公布号	US2494442(A)	申请公布日期	1950.01.10
申请号	US19470725669	申请日期	1947.01.31
申请人	HARTFORD NATIONAL BANK AND TRUST COMPANY	发明人	POOLE JAN BART LE
分类号	H01J37/04	主分类号	H01J37/04
代理机构		代理人
主权项
地址

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