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Fireplace insert
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Patent number 6,666,206
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Issue date Dec 23, 2003
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Shelton Gene Myrick
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F24 - HEATING RANGES VENTILATING
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Fireplace heat exchanger
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Patent number 6,047,695
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Issue date Apr 11, 2000
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H. Alfred Eberhardt
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F24 - HEATING RANGES VENTILATING
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-
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Fireplace heat exchanger
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Patent number 5,727,540
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Issue date Mar 17, 1998
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H. Alfred Eberhardt
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F24 - HEATING RANGES VENTILATING
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Fireplace heat exchanger
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Patent number 5,572,986
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Issue date Nov 12, 1996
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H. Alfred Eberhardt
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F24 - HEATING RANGES VENTILATING
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Zero clearance fireplace
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Patent number 5,307,801
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Issue date May 3, 1994
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Wolf Steel Ltd.
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Wolfgang Schroeter
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F24 - HEATING RANGES VENTILATING
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Fireplace heat exchanger
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Patent number 5,139,012
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Issue date Aug 18, 1992
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Cardinal American Corporation
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Arthur J. Furman
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F24 - HEATING RANGES VENTILATING
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Heating apparatus
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Patent number 5,046,481
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Issue date Sep 10, 1991
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Dean M. Warwick
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F24 - HEATING RANGES VENTILATING
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Fireplace insert construction
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Patent number 4,446,848
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Issue date May 8, 1984
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Gladstone Furnace Company, Inc.
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William M. Becker
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F24 - HEATING RANGES VENTILATING
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Home fireplace heating
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Patent number 3,965,886
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Issue date Jun 29, 1976
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Clifford H. Nelson
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F24 - HEATING RANGES VENTILATING
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3866595
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Patent number 3,866,595
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Issue date Feb 18, 1975
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F24 - HEATING RANGES VENTILATING
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3001521
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Patent number 3,001,521
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Issue date Sep 26, 1961
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F24 - HEATING RANGES VENTILATING
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2828078
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Patent number 2,828,078
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Issue date Mar 25, 1958
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F24 - HEATING RANGES VENTILATING
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2749905
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Patent number 2,749,905
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Issue date Jun 12, 1956
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F24 - HEATING RANGES VENTILATING
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2743720
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Patent number 2,743,720
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Issue date May 1, 1956
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F24 - HEATING RANGES VENTILATING
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2052643
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Patent number 2,052,643
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Issue date Sep 1, 1936
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F24 - HEATING RANGES VENTILATING