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Patent applications and USPTO patent grants for Prill; Arnold L..The latest application filed is for "powder metallurgy sintered corrosion and wear resistant high chromium refractory carbide alloy".
Patent | Date |
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Powder Metallurgy Sintered Corrosion And Wear Resistant High Chromium Refractory Carbide Alloy Grant 3,715,792 - Prill , et al. February 13, 1 | 1973-02-13 |
Powder Metallurgy Sintered Corrosion And Heat-resistant, Age Hardenable Nickel-chromium Refractory Carbide Alloy Grant 3,713,788 - Prill , et al. January 30, 1 | 1973-01-30 |
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