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Patents Grants
last 30 patents
Information
Patent Grant
Unfired, refractory, basic bricks and compositions and their method...
Patent number
4,049,461
Issue date
Sep 20, 1977
Osterreichisch-Amerkianische Magnesit Aktiengesellschaft
Gunther Lorenz Mortl
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method of producing MgO and Cr.sub.2 O.sub.3 based refractories and...
Patent number
4,008,092
Issue date
Feb 15, 1977
Osterreichisch-Amerkianische Magnesit Aktiengesellschaft
Gunther Lorenz Mortl
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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