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Spark ignition internal combustion engines
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Patent number 4,111,169
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Issue date Sep 5, 1978
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The Zenith Carburetter Company Limited
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Geoffrey Lloyd Lawrence
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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 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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3730496
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Patent number 3,730,496
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Issue date May 1, 1973
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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3667739
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Patent number 3,667,739
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Issue date Jun 6, 1972
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2002928
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Patent number 2,002,928
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Issue date May 28, 1935
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1990702
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Patent number 1,990,702
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Issue date Feb 12, 1935
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1944547
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Patent number 1,944,547
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Issue date Jan 23, 1934
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1818928
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Patent number 1,818,928
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Issue date Aug 11, 1931
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1744865
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Patent number 1,744,865
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Issue date Jan 28, 1930
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1534808
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Patent number 1,534,808
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Issue date Apr 21, 1925
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1478895
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Patent number 1,478,895
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Issue date Dec 25, 1923
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1446600
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Patent number 1,446,600
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Issue date Feb 27, 1923
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1433054
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Patent number 1,433,054
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Issue date Oct 24, 1922
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1398707
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Patent number 1,398,707
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Issue date Nov 29, 1921
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1378055
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Patent number 1,378,055
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Issue date May 17, 1921
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1370944
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Patent number 1,370,944
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Issue date Mar 8, 1921
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1368950
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Patent number 1,368,950
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Issue date Feb 15, 1921
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1349835
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Patent number 1,349,835
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Issue date Aug 17, 1920
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1337051
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Patent number 1,337,051
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Issue date Apr 13, 1920
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1335389
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Patent number 1,335,389
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Issue date Mar 30, 1920
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1282271
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Patent number 1,282,271
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Issue date Oct 22, 1918
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1248278
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Patent number 1,248,278
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Issue date Nov 27, 1917
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1243409
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Patent number 1,243,409
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Issue date Oct 16, 1917
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1242089
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Patent number 1,242,089
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Issue date Oct 2, 1917
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1241461
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Patent number 1,241,461
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Issue date Sep 25, 1917
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1234558
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Patent number 1,234,558
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Issue date Jul 24, 1917
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1231209
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Patent number 1,231,209
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Issue date Jun 26, 1917
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1222688
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Patent number 1,222,688
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Issue date Apr 17, 1917
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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1198043
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Patent number 1,198,043
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Issue date Sep 12, 1916
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS