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Microbiological production of protein
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Patent number 4,317,843
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Issue date Mar 2, 1982
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Imperial Chemical Industries Limited
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David G. MacLennan
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Process for culturing cells
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Patent number 4,306,026
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Issue date Dec 15, 1981
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Imperial Chemical Industries Limited
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Frank P. Maslen
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE