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Impregnating agent and its use
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Patent number 4,826,948
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Issue date May 2, 1989
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Bayer Aktiengesellschaft
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Bernhard Jansen
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Method of impregnating
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Patent number 4,810,536
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Issue date Mar 7, 1989
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Bayer Aktiengesellschaft
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Bernhard Jansen
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Laminated dressing
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Patent number 4,748,974
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Issue date Jun 7, 1988
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Bayer Aktiengesellschaft
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Roland Richter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Material for support dressings
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Patent number 4,638,795
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Issue date Jan 27, 1987
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Bayer Aktiengesellschaft
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Roland Richter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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