Parrott; George A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Parrott; George A..The latest application filed is for "water spray unit for mining".
- Parrott; George A. - Barnsley GB2
- Parrott; George A. - Wakefield GB2
- Parrott; George A. - Sandal GB2
| Patent | Date |
|---|---|
| Water spray unit for mining Grant 5,007,684 - Parrott April 16, 1 | 1991-04-16 |
| Tip and mineral cutter pick Grant 4,765,687 - Parrott August 23, 1 | 1988-08-23 |
| Mining machine Grant 4,755,002 - Parrott July 5, 1 | 1988-07-05 |
| Rotary cutting head Grant 4,621,869 - Parrott November 11, 1 | 1986-11-11 |
| Mining machine Grant 4,515,409 - Parrott May 7, 1 | 1985-05-07 |
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