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2809248
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2628337
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2305603
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B60 - VEHICLES IN GENERAL
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2147220
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Patent number 2,147,220
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Issue date Feb 14, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2144769
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2037260
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Patent number 2,037,260
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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1996849
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Patent number 1,996,849
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Issue date Apr 9, 1935
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H01 - BASIC ELECTRIC ELEMENTS
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1996312
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Patent number 1,996,312
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1938720
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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1929994
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Patent number 1,909,156
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1741564
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1520000
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1412444
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1155940
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