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公开(公告)号:US2848644A
公开(公告)日:1958-08-19
申请号:US33187453
申请日:1953-01-19
Applicant: PHILIPS CORP
Inventor: KOPPIUS OTTO G
IPC: H01J1/28
CPC classification number: H01J1/28
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公开(公告)号:US3010826A
公开(公告)日:1961-11-28
申请号:US55522155
申请日:1955-12-14
Applicant: PHILIPS CORP
Inventor: KOPPIUS OTTO G
IPC: H01J9/04
CPC classification number: H01J9/047
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公开(公告)号:US2769708A
公开(公告)日:1956-11-06
申请号:US36105453
申请日:1953-06-11
Applicant: PHILIPS CORP
Inventor: COPPOLA PATRICK P , HUGHES RAY C , KOPPIUS OTTO G
IPC: H01J9/04
CPC classification number: H01J9/042 , Y10T428/12479
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