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公开(公告)号:US3050149A
公开(公告)日:1962-08-21
申请号:US68638657
申请日:1957-09-26
Applicant: TEXACO INC
Inventor: ITRIA OSWALD A , PARRACK ALVIN L
IPC: G01V1/13
CPC classification number: G01V1/13
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2.
公开(公告)号:US3313371A
公开(公告)日:1967-04-11
申请号:US35802864
申请日:1964-04-07
Applicant: TEXACO INC
Inventor: PARRACK ALVIN L , CLEMENTS ROY J , ITRIA OSWALD A
CPC classification number: G01V1/16 , H01H35/346
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公开(公告)号:US2960176A
公开(公告)日:1960-11-15
申请号:US69056257
申请日:1957-10-16
Applicant: TEXACO INC
Inventor: PARRACK ALVIN L
IPC: G01V1/00
CPC classification number: G01V1/00
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公开(公告)号:US3246720A
公开(公告)日:1966-04-19
申请号:US14630961
申请日:1961-10-19
Applicant: TEXACO INC
Inventor: PARRACK ALVIN L , HUDSON JOHN L
IPC: G01V1/30
CPC classification number: G01V1/306
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5.Method and apparatus for obtaining constant speed drive for low speed recorders 失效
Title translation: 用于获得低速记录仪恒速驱动的方法和装置公开(公告)号:US2989596A
公开(公告)日:1961-06-20
申请号:US67661957
申请日:1957-08-06
Applicant: TEXACO INC
Inventor: LEE BURTON D , PARRACK ALVIN L
IPC: F16H33/00
CPC classification number: F16H33/00 , F16H2706/00
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6.
公开(公告)号:US3336573A
公开(公告)日:1967-08-15
申请号:US57943566
申请日:1966-09-14
Applicant: TEXACO INC
Inventor: GALLAWAY ROY L , PARRACK ALVIN L
IPC: G01V1/18
CPC classification number: G01V1/186
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公开(公告)号:US3289155A
公开(公告)日:1966-11-29
申请号:US49758665
申请日:1965-09-24
Applicant: TEXACO INC
Inventor: PARRACK ALVIN L , STUBBLEFIELD STEVEN A
IPC: G01V1/18
CPC classification number: G01V1/181
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公开(公告)号:US3220504A
公开(公告)日:1965-11-30
申请号:US17298262
申请日:1962-02-13
Applicant: TEXACO INC
Inventor: PARRACK ALVIN L
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9.Method and apparatus for speed variation compensation in a recording system 失效
Title translation: 记录系统中速度变动补偿的方法和装置公开(公告)号:US2957167A
公开(公告)日:1960-10-18
申请号:US70769958
申请日:1958-01-08
Applicant: TEXACO INC
Inventor: PARRACK ALVIN L
IPC: G11B23/00
CPC classification number: G11B23/0007
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