Liogonkaya; Rakhil Izrailevna
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liogonkaya; Rakhil Izrailevna.The latest application filed is for "method for cementing wells".
- Liogonkaya; Rakhil Izrailevna - Leningrad SU
| Patent | Date |
|---|---|
| Method for cementing wells Grant 3,921,717 - Danjushevsky , et al. November 25, 1 | 1975-11-25 |
| Binder for cementing wells Grant 3,920,466 - Danjushevsky , et al. November 18, 1 | 1975-11-18 |
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