Collin; Per H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Collin; Per H..The latest application filed is for "process for burning carbonaceous materials".
- Collin; Per H. - Falun SE
| Patent | Date |
|---|---|
| Process for burning carbonaceous materials Grant 4,165,717 - Reh , et al. August 28, 1 | 1979-08-28 |
| Method for direct manufacture of crude steel Grant 4,131,452 - Collin December 26, 1 | 1978-12-26 |
| Method for reducing material containing iron oxides Grant 4,073,642 - Collin , et al. February 14, 1 | 1978-02-14 |
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