Kostylev; Alexander Dmitrievich
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kostylev; Alexander Dmitrievich.The latest application filed is for "reversing pneumatic percussive device".
- Kostylev; Alexander Dmitrievich - Novosibirsk SU
| Patent | Date |
|---|---|
| Reversing pneumatic percussive device Grant 4,121,672 - Tkach , et al. October 24, 1 | 1978-10-24 |
| Reversible Impact Device For Driving Holes In Earth Grant 3,763,939 - Sudnishnikov , et al. October 9, 1 | 1973-10-09 |
| Pneumatically Operated Impact-action Self-propelled Mechanism Grant 3,756,328 - Sudnishnikov , et al. September 4, 1 | 1973-09-04 |
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