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公开(公告)号：US2976420A
公开(公告)日：1961-03-21
申请号：US75467058
申请日：1958-08-12
Applicant: LANDSVERK ELECTROMETER COMPANY
Inventor： LANDSVERK OLE G , ZENONAS GLODENIS , MERRINER DELBERT L
IPC: H01J47/04
CPC classification number: H01J47/04
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公开(公告)号：US3017511A
公开(公告)日：1962-01-16
申请号：US75430558
申请日：1958-08-11
Applicant: LANDSVERK ELECTROMETER COMPANY
Inventor： LANDSVERK OLE G , ZENONAS GLODENIS
IPC: H01J47/04
CPC classification number: H01J47/04
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公开(公告)号：US3047748A
公开(公告)日：1962-07-31
申请号：US80302959
申请日：1959-03-30
Applicant: LANDSVERK ELECTROMETER COMPANY
Inventor： LANDSVERK OLE G , ZENONAS GLODENIS , MERRINER DELBERT L
IPC: H02N1/04
CPC classification number: H02N1/04
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