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公开(公告)号:US3256459A
公开(公告)日:1966-06-14
申请号:US25871763
申请日:1963-02-15
Applicant: PEK LABS INC
Inventor: KELLER CHARLES H , PAQUETTE RAYMOND E
CPC classification number: H01J61/98 , H05B31/305
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公开(公告)号:US3274427A
公开(公告)日:1966-09-20
申请号:US43975765
申请日:1965-03-15
Applicant: PEK LABS INC
Inventor: PAQUETTE RAYMOND E , KELLER CHARLES H
IPC: H01J61/98
CPC classification number: H01J61/98
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公开(公告)号:US3488546A
公开(公告)日:1970-01-06
申请号:US3488546D
申请日:1967-11-13
Applicant: PEK LABS INC
Inventor: PAQUETTE RAYMOND E
CPC classification number: H01J61/98
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