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Snap-in assembly for bag filter
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Patent number 4,306,893
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Issue date Dec 22, 1981
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The Air Preheater Company, Inc.
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James U. R. Fernando
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Header pipe attachment
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Patent number 4,302,228
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Issue date Nov 24, 1981
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The Air Preheater Company, Inc.
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Kent E. Ritter
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Actuated sector plate
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Patent number 4,298,055
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Issue date Nov 3, 1981
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The Air Preheater Company, Inc.
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Kent E. Ritter
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F28 - HEAT EXCHANGE IN GENERAL