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1.发明授权Electron beam column with demountable flux-generating assembly and beam-forming elements 失效具有可拆卸通量发生组件和波束形成元件的电子束柱
公开(公告)号：US3345529A
公开(公告)日：1967-10-03
申请号：US57573166
申请日：1966-08-29
Applicant: IBM
Inventor： LOEFFLER KARL H , SALBU ERIK O J
IPC: G11B7/09 , G11C13/04 , H01J29/52 , H01J29/82 , H01J37/04 , H01J37/09 , H01J37/21 , H01J37/244 , H01J37/304
CPC classification number: H01J29/52 , G11B7/0917 , G11C13/04 , G11C13/048 , H01J29/82 , H01J37/04 , H01J37/09 , H01J37/21 , H01J37/244 , H01J37/304 , H01J2237/24507
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公开(公告)号：CA831131A
公开(公告)日：1969-12-30
申请号：CA831131D
Applicant: IBM
Inventor： LOEFFLER KARL H , SALBU ERIK O J
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