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Heat-sink water heater
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Patent number 4,392,455
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Issue date Jul 12, 1983
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Raymond C. Jarvis
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F24 - HEATING RANGES VENTILATING
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Heating system
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Patent number 4,350,024
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Issue date Sep 21, 1982
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Cinderella AB
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Thorleif Moll
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F24 - HEATING RANGES VENTILATING
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Home heating system
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Patent number 4,330,083
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Issue date May 18, 1982
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Dante Di Fiore
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F24 - HEATING RANGES VENTILATING
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2424844
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Patent number 2,424,844
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Issue date Jul 29, 1947
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F24 - HEATING RANGES VENTILATING
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2330436
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Patent number 2,330,436
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Issue date Sep 28, 1943
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F24 - HEATING RANGES VENTILATING
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2174901
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Patent number 2,174,901
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Issue date Oct 3, 1939
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F24 - HEATING RANGES VENTILATING
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1984248
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Patent number 1,984,248
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Issue date Dec 11, 1934
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F24 - HEATING RANGES VENTILATING
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1856693
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Patent number 1,856,693
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Issue date May 3, 1932
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F24 - HEATING RANGES VENTILATING
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1739767
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Patent number 1,739,767
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Issue date Dec 17, 1929
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F24 - HEATING RANGES VENTILATING
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1693043
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Patent number 1,693,043
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Issue date Nov 27, 1928
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F24 - HEATING RANGES VENTILATING
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1661193
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Patent number 1,661,193
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Issue date Mar 6, 1928
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F24 - HEATING RANGES VENTILATING
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1615486
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Patent number 1,615,486
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Issue date Jan 25, 1927
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F24 - HEATING RANGES VENTILATING
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1556937
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Patent number 1,556,937
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Issue date Oct 13, 1925
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F24 - HEATING RANGES VENTILATING
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1520788
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Patent number 1,520,788
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Issue date Dec 30, 1924
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F24 - HEATING RANGES VENTILATING
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1433755
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Patent number 1,433,755
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Issue date Oct 31, 1922
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F24 - HEATING RANGES VENTILATING
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1430466
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Patent number 1,430,466
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Issue date Sep 26, 1922
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F24 - HEATING RANGES VENTILATING
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1188095
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Patent number 1,188,095
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Issue date Jun 20, 1916
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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500554
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Patent number 500,554
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Issue date Jul 4, 1893
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F24 - HEATING RANGES VENTILATING
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402602
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Patent number 402,602
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Issue date May 7, 1889
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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383418
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Patent number 383,418
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Issue date May 22, 1888
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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314773
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Patent number 314,773
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Issue date Mar 31, 1885
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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299740
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Patent number 299,740
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Issue date Jun 3, 1884
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F24 - HEATING RANGES VENTILATING