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Central heating radiators
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Patent number 6,607,022
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Issue date Aug 19, 2003
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Oystertec Plc
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Paul Anthony Davidson
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F24 - HEATING RANGES VENTILATING
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2160689
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Patent number 2,160,689
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Issue date May 30, 1939
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F24 - HEATING RANGES VENTILATING
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2136255
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Patent number 2,136,255
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Issue date Nov 8, 1938
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F24 - HEATING RANGES VENTILATING
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1927991
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Patent number 1,927,991
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Issue date Sep 26, 1933
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F24 - HEATING RANGES VENTILATING
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1472955
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Patent number 1,472,955
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Issue date Nov 6, 1923
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F24 - HEATING RANGES VENTILATING
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1356040
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Patent number 1,356,040
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Issue date Oct 19, 1920
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F24 - HEATING RANGES VENTILATING
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876714
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Patent number 876,714
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Issue date Jan 14, 1908
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F24 - HEATING RANGES VENTILATING