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Air scrubber
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Patent number 5,292,353
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Issue date Mar 8, 1994
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The Delfield Company
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Arnold S. Kaufman
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Air ventilation and washing system
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Patent number 4,186,727
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Issue date Feb 5, 1980
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National Food Service Equipment Fabricators, Inc.
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Arnold S. Kaufman
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F24 - HEATING RANGES VENTILATING
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Air ventilation and washing system
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Patent number 4,085,735
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Issue date Apr 25, 1978
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National Food Service Equipment Fabricators, Inc.
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Arnold S. Kaufman
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F24 - HEATING RANGES VENTILATING