Patent applications and USPTO patent grants for Barrows; Robert E..The latest application filed is for "down hole drill chuck lock".
Patent | Date |
---|---|
Down hole drill chuck lock Grant 4,836,306 - Barrows June 6, 1 | 1989-06-06 |
Overrunning clutch Grant 4,261,452 - Barrows April 14, 1 | 1981-04-14 |
Disc memory apparatus magnetic head carriage manual control Grant 4,164,766 - Kaseta , et al. August 14, 1 | 1979-08-14 |
Cross band coupling for stepper-motor-driven, rigid magnetic disc Grant 4,164,769 - Kaseta , et al. August 14, 1 | 1979-08-14 |
Rigid magnetic disc memory apparatus employing stepper motor drive and pivotable head support with temperature compensation Grant 4,163,996 - Kaseta , et al. August 7, 1 | 1979-08-07 |
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