Levefelt; Bert G.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Levefelt; Bert G..The latest application filed is for "excavating tool cutting insert".
- Levefelt; Bert G. - Sandviken SE
- Levefelt; Bert G. - Mariestad SE
| Patent | Date |
|---|---|
| Excavating tool cutting insert Grant 5,161,859 - Larsson , et al. November 10, 1 | 1992-11-10 |
| Excavating tool cutting insert Grant 4,938,538 - Larsson , et al. July 3, 1 | 1990-07-03 |
| Method and device for working of road surfaces Grant 4,784,517 - Bergqvist , et al. November 15, 1 | 1988-11-15 |
| Lubricating device Grant 4,284,151 - Levefelt August 18, 1 | 1981-08-18 |
| Rotary drill bit Grant 4,272,134 - Levefelt June 9, 1 | 1981-06-09 |
| Roller bit seal excluded from cuttings by air discharge Grant 4,183,417 - Levefelt January 15, 1 | 1980-01-15 |
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