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Rotary incinerator
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Patent number 4,108,088
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Issue date Aug 22, 1978
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Met-Pro Systems, Inc.
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Roy B. Burden
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F26 - DRYING
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Carbon contact column
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Patent number 4,085,043
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Issue date Apr 18, 1978
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Met-Pro Systems, Inc.
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Norbert H. Ellis
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE