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Fish oil
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Patent number 5,023,100
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Issue date Jun 11, 1991
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Kabi Vitrum AB
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Stephen S. Chang
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Purification of fish oil
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Patent number 4,874,629
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Issue date Oct 17, 1989
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Stephen S. Chang
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Fermented-whey butter flavoring
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Patent number 4,670,267
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Issue date Jun 2, 1987
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Lever Brothers Company
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Stephen S. Chang
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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