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Heavy oil remover
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Patent number 6,369,016
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Issue date Apr 9, 2002
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Heavy oil remover
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Patent number 6,310,263
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Issue date Oct 30, 2001
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Heavy oil remover
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Patent number 6,235,698
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Issue date May 22, 2001
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Heavy oil remover
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Patent number 6,228,830
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Issue date May 8, 2001
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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High wax content heavy oil remover
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Patent number 6,197,734
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Issue date Mar 6, 2001
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Asphalt and heavy oil degreaser
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Patent number 6,093,689
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Issue date Jul 25, 2000
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Asphalt and heavy oil degreaser
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Patent number 6,090,769
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Issue date Jul 18, 2000
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Heavy oil remover
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Patent number 5,998,352
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Issue date Dec 7, 1999
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Heavy oil remover
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Patent number 5,985,816
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Issue date Nov 16, 1999
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Dotolo Research Ltd.
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Jack T. Vlasblom
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C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...