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2420553
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Issue date Nov 21, 1944
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Patent number 2,310,115
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Issue date Feb 2, 1943
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Patent number 2,106,603
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Issue date Jan 25, 1938
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...