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Tzolo Valkov Rashev
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Sofia, BG
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last 30 patents
Information
Patent Grant
Control system for electroslag remelting
Patent number
4,669,087
Issue date
May 26, 1987
Institute po Metaloznanie i Technologia na Metalite
Ivanka A. Rasheva
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Apparatus for the treatment and casting of metals and alloys in a c...
Patent number
4,616,808
Issue date
Oct 14, 1986
Institute po Metaloznanie i Technologia na Metalite
Ivan D. Nikolov
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method and system for control of the electroslag remelting
Patent number
4,476,565
Issue date
Oct 9, 1984
Institute Po Metaloznante I Technologia Na Metalite
Tzolo V. Rashev
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Device for balancing the forces acting on the electrode in electro-...
Patent number
4,307,263
Issue date
Dec 22, 1981
Institute po Metaloznanie i Technologia na Metalite
Tzolo V. Rashev
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Apparatus for nitriding metal materials and ferroalloys under pressure
Patent number
4,253,868
Issue date
Mar 3, 1981
Institute po Metaloznanie i Technologia na Metalite
Ivan D. Nikolov
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Nickel-free austenitic corrosion-resistant steel
Patent number
4,116,683
Issue date
Sep 26, 1978
Institute po Metaloznanie i Technologia na Metalite
Ivan Dimov Nikolov
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...