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Transmix prevention lock
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Patent number 7,644,723
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Issue date Jan 12, 2010
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Endre Zsigmond
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Backflow valve
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Patent number 6,499,503
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Issue date Dec 31, 2002
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Gabe Coscarella
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Backwater valve
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Patent number 6,446,665
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Issue date Sep 10, 2002
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Gabe Coscarella
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Backflow valve
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Patent number 6,318,404
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Issue date Nov 20, 2001
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Gabe Coscarella
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3586035
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Patent number 3,586,035
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Issue date Jun 22, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3469597
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Patent number 3,469,597
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Issue date Sep 30, 1969
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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3459214
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Patent number 3,459,214
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Issue date Aug 5, 1969
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3395721
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Patent number 3,395,721
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Issue date Aug 6, 1968
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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3203444
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Patent number 3,203,444
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Issue date Aug 31, 1965
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3040769
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Patent number 3,040,769
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Issue date Jun 26, 1962
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2889846
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Patent number 2,889,846
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Issue date Jun 9, 1959
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2833300
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Patent number 2,833,300
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Issue date May 6, 1958
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2820419
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Patent number 2,820,419
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Issue date Jan 21, 1958
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C01 - INORGANIC CHEMISTRY
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2764179
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Patent number 2,764,179
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Issue date Sep 25, 1956
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2745427
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Patent number 2,745,427
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Issue date May 15, 1956
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E03 - WATER SUPPLY SEWERAGE
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2721574
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Patent number 2,721,574
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Issue date Oct 25, 1955
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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2666447
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Patent number 2,666,447
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Issue date Jan 19, 1954
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2604112
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Patent number 2,604,112
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Issue date Jul 22, 1952
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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2570694
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Patent number 2,570,694
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Issue date Oct 9, 1951
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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2504638
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Patent number 2,504,638
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Issue date Apr 18, 1950
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...