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Rotary disc regenerator
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Patent number 3,939,904
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Issue date Feb 24, 1976
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Albert H. Beaufrere
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F28 - HEAT EXCHANGE IN GENERAL
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3893505
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Patent number 3,893,505
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Issue date Jul 8, 1975
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F28 - HEAT EXCHANGE IN GENERAL
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3818978
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Patent number 3,818,978
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Issue date Jun 25, 1974
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F28 - HEAT EXCHANGE IN GENERAL
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2802646
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Patent number 2,802,646
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Issue date Aug 13, 1957
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F28 - HEAT EXCHANGE IN GENERAL