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Cyclone combustion apparatus
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Patent number 5,029,557
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Issue date Jul 9, 1991
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Donlee Technologies, Inc.
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Jacob Korenberg
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F22 - STEAM GENERATION
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Swirl combustion apparatus
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Patent number 4,879,959
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Issue date Nov 14, 1989
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Donlee Technologies, Inc.
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Jacob Korenberg
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F24 - HEATING RANGES VENTILATING
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Cyclone combustion apparatus
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Patent number 4,860,695
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Issue date Aug 29, 1989
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Donlee Technologies, Inc.
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Jacob Korenberg
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F22 - STEAM GENERATION
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