Minroc Technical Promotions Limited
Patent Applications and Registrations
Patent applications and USPTO patent grants for Minroc Technical Promotions Limited.The latest application filed is for "drill bit assembly for fluid-operated percussion drill tools".
- Minroc Technical Promotions Limited - Co. Clare IE
- Minroc Technical Promotions Limited - IE IE
- Minroc Technical Promotions Limited -
- Minroc Technical Promotions Ltd. - IE IE
- Minroc Technical Promotions Ltd. - Smithtown IE
| Patent | Date |
|---|---|
| Drill bit assembly for fluid-operated percussion drill tools Grant 7,987,930 - Purcell August 2, 2 | 2011-08-02 |
| Drill bit assembly for fluid-operated percussion drill tools Grant 7,975,784 - Purcell July 12, 2 | 2011-07-12 |
| Percussion hammer for enlarging drilled holes Grant 7,735,584 - Purcell June 15, 2 | 2010-06-15 |
| Drill bit assembly for fluid-operated percussion drill tools App 20100108395 - Purcell; Joseph | 2010-05-06 |
| Segmented ring mounting for a fluid-operated percussion drill tool Grant 6,290,424 - Purcell September 18, 2 | 2001-09-18 |
| Reverse circulation down-the-hole hammer drill and bit therefor Grant 4,819,746 - Brown , et al. April 11, 1 | 1989-04-11 |
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