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公开(公告)号：US3010909A
公开(公告)日：1961-11-28
申请号：US77940258
申请日：1958-12-10
Applicant: PHILIPS CORP
Inventor： ANNE KLASENS HENDRIK , GOOL WILLEM VAN , ALFRED BRIL
CPC classification number: C09K11/0811 , H01J29/187 , H01J29/32
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