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Hubertus Schlerkmann
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Roetgen, DE
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last 30 patents
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Patent Grant
Weldable high-strength structural steel with 13% chromium
Patent number
5,462,615
Issue date
Oct 31, 1995
Mannesmann Aktiengesellschaft
Ingo Von Hagen
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Patent Grant
Method of improving the resistance of articles of steel to H-induce...
Patent number
5,122,198
Issue date
Jun 16, 1992
Mannesmann Aktiengesellschaft
Ingo von Hagen
C21 - METALLURGY OF IRON