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公开(公告)号:US2168295A
公开(公告)日:1939-08-01
申请号:US13704037
申请日:1937-04-15
Applicant: PHILIPS NV
Inventor: DE VRIES GERRIT , VON LINDERN CARL G A
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公开(公告)号:US2093750A
公开(公告)日:1937-09-21
申请号:US2688335
申请日:1935-06-15
Applicant: PHILIPS NV
Inventor: DE VRIES GERRIT
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公开(公告)号:US2113758A
公开(公告)日:1938-04-12
申请号:US4349035
申请日:1935-10-04
Applicant: PHILIPS NV
Inventor: DE VRIES GERRIT , RUDOLF BOOSMAN HERMAN BERNARD
IPC: H01P1/28
CPC classification number: H01P1/28
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4.Circuit arrangement for amplifying and/or frequency transformation of electrical oscillations 失效
Title translation: 用于电振荡放大和/或频率变换的电路布置公开(公告)号:US2094477A
公开(公告)日:1937-09-28
申请号:US3909435
申请日:1935-09-04
Applicant: PHILIPS NV
Inventor: HUBERTUS TELLEGEN BERNARDUS DO , DE VRIES GERRIT , JAN BAKKER CORNELIS
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公开(公告)号:US2173910A
公开(公告)日:1939-09-26
申请号:US9127436
申请日:1936-07-18
Applicant: PHILIPS NV
Inventor: DER MARK JAN VAN , DE VRIES GERRIT
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公开(公告)号:US2168296A
公开(公告)日:1939-08-01
申请号:US14617837
申请日:1937-06-03
Applicant: PHILIPS NV
Inventor: DE VRIES GERRIT , VON LINDERN CARL G A
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