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Patent applications and USPTO patent grants for Messner; Georg.The latest application filed is for "apparatus for the fabrication of pure alumina from al.sub.2 o.sub.3 and silica containing raw materials by leaching with hydrochloric acid".
Patent | Date |
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Apparatus for the fabrication of pure alumina from Al.sub.2 O.sub.3 and silica containing raw materials by leaching with hydrochloric acid Grant 4,056,363 - Messner November 1, 1 | 1977-11-01 |
PROCESS AND APPARATUS FOR THE ELECTROLYSIS OF HCl CONTAINING SOLUTIONS WITH GRAPHITE ELECTRODES WHICH KEEP THE CHLORINE AND HYDROGEN GASES SEPARATE Grant 3,855,104 - Messner December 17, 1 | 1974-12-17 |
Vacuum Electrical Contacts For Use In Electrolytic Cells Grant 3,755,105 - Messner August 28, 1 | 1973-08-28 |
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