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Liquid heating apparatus
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Patent number 4,633,821
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Issue date Jan 6, 1987
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Clarence W. Cleer
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F24 - HEATING RANGES VENTILATING
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Fireplace heating system
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Patent number 4,131,231
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Issue date Dec 26, 1978
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Ridgway Steel Fabricators, Inc.
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Clarence W. Cleer
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Water jacket fabrication
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Patent number 4,080,701
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Issue date Mar 28, 1978
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Ridgway Steel Fabricators, Inc.
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Clarence W. Cleer
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Fireplace heating system
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Patent number 4,025,043
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Issue date May 24, 1977
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Ridgway Steel Fabricators, Inc.
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Clarence W. Cleer
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F24 - HEATING RANGES VENTILATING
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