Karoly Barsi

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Tatabanya, HU

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Patents Grantslast 30 patents

Information Patent Grant
Mining method for working large-scale mineral deposits by the cavin...
- Patent number 4,799,738
- Issue date Jan 24, 1989
- Tatabanyai Szenbanyak
- Andras Solymos
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process for the extraction of thick coal seams
- Patent number 4,400,035
- Issue date Aug 23, 1983
- Tatabanyai Szenbanyak
- Karoly Barsi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of mining heavy coal seams in two or more benches
- Patent number 4,340,254
- Issue date Jul 20, 1982
- Tatabanyai Szenbanyak
- Karoly Barsi
- E21 - EARTH DRILLING MINING