Grigori Galperin

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Novokuznetsk, RU

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing steel
- Patent number 5,417,740
- Issue date May 23, 1995
- Zaptech Corporation
- Grigori Galperin
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing steel
- Patent number 5,378,261
- Issue date Jan 3, 1995
- Zaptech Corporation
- Rafik Aizatulov
- C21 - METALLURGY OF IRON