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公开(公告)号：US3242375A
公开(公告)日：1966-03-22
申请号：US11814361
申请日：1961-06-19
Applicant: LITTON PREC PRODUCTS INC
Inventor： ANDERSON CHARLES E , JAMES DUDFIELD
CPC classification number: H01J23/26 , H01J5/26 , H01J2893/0041 , Y10T29/49016 , Y10T29/49071
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