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公开(公告)号：US2296269A
公开(公告)日：1942-09-22
申请号：US33484640
申请日：1940-05-13
Applicant: INVEX CORP
Inventor： CRAIG PALMER H , HERMAN LESTER C
IPC: H01J40/00
CPC classification number: H01J40/00
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公开(公告)号：US2235379A
公开(公告)日：1941-03-18
申请号：US20036238
申请日：1938-04-06
Applicant: MARSH DELOS E
Inventor： MARSH DELOS E
IPC: H01J40/00
CPC classification number: H01J40/00 , Y10T74/1503 , Y10T74/18056
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公开(公告)号：US2147156A
公开(公告)日：1939-02-14
申请号：US166435
申请日：1935-01-14
Applicant: RADIO PATENTS CORP
Inventor： HEINRICH GEFFCKEN , HANS RICHTER
IPC: H01J40/00
CPC classification number: H01J40/00
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公开(公告)号：US2065723A
公开(公告)日：1936-12-29
申请号：US69004533
申请日：1933-09-19
Applicant: RCA CORP
Inventor： HERBERT NELSON
IPC: H01J40/00
CPC classification number: H01J40/00
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公开(公告)号：US2000642A
公开(公告)日：1935-05-07
申请号：US62253132
申请日：1932-07-14
Applicant: WESTON ELECTRICAL INSTR CORP
Inventor： LAMB ANTHONY H
IPC: H01J40/00
CPC classification number: H01J40/00
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Patent Agency Ranking
公开(公告)号：US1998334A
公开(公告)日：1935-04-16
申请号：US62624732
申请日：1932-07-29
Applicant: GEN ELECTRIC
Inventor： EMIL RUPP
IPC: H01J40/00
CPC classification number: H01J40/00 , Y10S29/031
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公开(公告)号：US1821808A
公开(公告)日：1931-09-01
申请号：US21667927
申请日：1927-08-31
Applicant: GEN ELECTRIC
Inventor： HULL ALBERT W
IPC: H01J40/00
CPC classification number: H01J40/00
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公开(公告)号：US1695746A
公开(公告)日：1928-12-18
申请号：US29684619
申请日：1919-05-13
Applicant: SPERRY GYROSCOPE CO LTD
Inventor： STARK KIMBALL H
IPC: H01J40/00
CPC classification number: H01J40/00
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公开(公告)号：US1683451A
公开(公告)日：1928-09-04
申请号：US7647125
申请日：1925-12-19
Applicant: FOREST PHONOFILM CORP DE
Inventor： DE FOREST LEE
IPC: H01J40/00
CPC classification number: H01J40/00
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公开(公告)号：US11333673B2
公开(公告)日：2022-05-17
申请号：US16827539
申请日：2020-03-23
Applicant: QUEST DIAGNOSTICS INVESTMENTS INCORPORATED
Inventor： Karin O. Thomassian
IPC: G01N33/94 , A61K31/785 , H01J40/00 , H01J49/00
Abstract: Methods are described for determining the amount of metabolites of leflunomide in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying teriflunomide in a sample.
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