Method of and apparatus for selectively achieving electronic darkfield and bright field illumation,申请号US19470793880-传众专利搜索

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发明名称	Method of and apparatus for selectively achieving electronic darkfield and bright field illumation
摘要
申请公布号	US2464419(A)	申请公布日期	1949.03.15
申请号	US19470793880	申请日期	1947.12.26
申请人	RADIO CORPORATION OF AMERICA	发明人	SMITH PERRY C.;REISNER JOHN H.
分类号	H01J37/26	主分类号	H01J37/26
代理机构		代理人
主权项
地址

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