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公开(公告)号:US2103338A
公开(公告)日:1937-12-28
申请号:US2676035
申请日:1935-06-15
Applicant: PHILIPS NV
Inventor: KLAAS POSTHUMUS , ALPHONSE NORDLOHNE PIERRE JANN
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公开(公告)号:US2161087A
公开(公告)日:1939-06-06
申请号:US5486235
申请日:1935-12-17
Applicant: PHILIPS NV
Inventor: KLAAS POSTHUMUS , VON LINDERN CARL G A
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公开(公告)号:US2112136A
公开(公告)日:1938-03-22
申请号:US13043837
申请日:1937-03-12
Applicant: PHILIPS NV
Inventor: GERARD BOUMEESTER HUIBERT , KLAAS POSTHUMUS
IPC: H01J21/20
CPC classification number: H01J21/20 , H01J2893/003
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