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Particulate solids
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Patent number 4,194,444
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Issue date Mar 25, 1980
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Smitherm Industries, Inc.
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Horace L. Smith
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Continuous web drying
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Patent number 4,146,972
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Issue date Apr 3, 1979
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Smitherm Industries, Inc.
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Horace L. Smith
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Continuous coffee roasting apparatus
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Patent number 4,096,792
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Issue date Jun 27, 1978
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Smitherm Industries, Inc.
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Horace L. Smith
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Rotary heat exchangers
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Patent number 4,086,691
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Issue date May 2, 1978
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Smitherm Industries, Inc.
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Horace L. Smith
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F28 - HEAT EXCHANGE IN GENERAL
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