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Fireplace structure
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Patent number 4,471,755
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Issue date Sep 18, 1984
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Preway Inc.
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Francis L. Faehling
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F24 - HEATING RANGES VENTILATING
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Fireplace
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Patent number 4,184,475
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Issue date Jan 22, 1980
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Preway Inc.
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Francis L. Faehling
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F24 - HEATING RANGES VENTILATING
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Fireplace construction
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Patent number 4,153,036
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Issue date May 8, 1979
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Preway Inc.
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Thomas F. Billmeyer
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F24 - HEATING RANGES VENTILATING
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Fireplace construction
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Patent number 4,117,827
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Issue date Oct 3, 1978
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Preway Inc.
-
Thomas F. Billmeyer
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F24 - HEATING RANGES VENTILATING
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Fireplace construction
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Patent number 4,095,581
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Issue date Jun 20, 1978
-
Preway Inc.
-
Thomas F. Billmeyer
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F24 - HEATING RANGES VENTILATING