Kalinka I. Kresteva

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Sofia, BG

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Patents Grantslast 30 patents

Information Patent Grant
Method of reverse stratification
- Patent number 4,240,903
- Issue date Dec 23, 1980
- Vish Minno Geoloshki Institute
- Stoycho M. Stoev
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING