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Sludge pond vehicle
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Patent number 4,776,112
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Issue date Oct 11, 1988
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Industrial Innovations
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William G. Urbani
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Tank cleaning system
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Patent number 4,771,503
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Issue date Sep 20, 1988
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Industrial Innovations, Inc.
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William G. Urbani
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B08 - CLEANING
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Vacuum loading cleaning system
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Patent number 4,707,878
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Issue date Nov 24, 1987
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Industrial Innovations, Inc.
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William G. Urbani
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B60 - VEHICLES IN GENERAL
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Vacuum loading cleaning system
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Patent number 4,619,015
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Issue date Oct 28, 1986
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Industrial Innovations, Inc.
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William G. Urbani
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B60 - VEHICLES IN GENERAL
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Tank cleaning system
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Patent number 4,466,154
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Issue date Aug 21, 1984
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William G. Urbani
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B08 - CLEANING