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Oesterreichisch-Amerikanische Magnesit Aktiengesellschaft
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Radenthein, AT
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Patent Grant
Sliding shutters of basic refractory material
Patent number
4,175,974
Issue date
Nov 27, 1979
Oesterreichisch-Amerikanische Magnesit Aktiengesellschaft
Bernd E. Grabner
B22 - CASTING POWDER METALLURGY
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Patent Grant
Brickmaking press
Patent number
4,137,026
Issue date
Jan 30, 1979
Veitscher Magnesitwerke-Actien-Gesellschaft
Rudolf Gerstl
B28 - WORKING CEMENT, CLAY, OR STONE
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