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Hydro-air renewable power system
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Patent number 5,992,151
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Issue date Nov 30, 1999
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Melvin L. Prueitt
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Hydro-air renewable power system
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Patent number 5,784,886
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Issue date Jul 28, 1998
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Melvin L. Prueitt
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Hydro-air renewable power system
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Patent number 5,551,238
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Issue date Sep 3, 1996
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Melvin L. Prueitt
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2497612
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Patent number 2,497,612
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Issue date Feb 14, 1950
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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1687941
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Patent number 1,687,941
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Issue date Oct 16, 1928
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F22 - STEAM GENERATION
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1670072
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Patent number 1,670,072
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Issue date May 15, 1928
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F22 - STEAM GENERATION