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Fluid rotor
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Patent number 4,159,191
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Issue date Jun 26, 1979
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Clinton L. Graybill
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Variable venturi carburetor
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Patent number 4,088,715
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Issue date May 9, 1978
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Clinton L. Graybill
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Variable venturi carburetor
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Patent number 4,080,409
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Issue date Mar 21, 1978
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Clinton L. Graybill
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Wind energy conversion device
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Patent number 3,995,170
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Issue date Nov 30, 1976
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Clinton L. Graybill
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Variable venturi carburetor
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Patent number 3,970,730
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Issue date Jul 20, 1976
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Clinton L. Graybill
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Air-valve type carburetor
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Patent number 3,940,460
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Issue date Feb 24, 1976
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Clinton L. Graybill
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS