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Hydrophobic concrete mixture
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Conpore Technology AB
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Kjell Svedman
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Stryker Corporation
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Hermann Oppermann
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Issue date Nov 30, 1993
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Stryker Corporation
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Hermann Oppermann
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Rafik B. Oganesian
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Spherical aggregates
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Patent number 3,956,003
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Issue date May 11, 1976
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Universite de Sherbrooke
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3801343
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