Yelana (Helen) Faynshteyn

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Production of liquid fertilizers by ion exchange
- Patent number 5,944,868
- Issue date Aug 31, 1999
- Tessenderlo Kerley, Inc.
- Yelana (Helen) Faynshteyn
- C05 - FERTILISERS MANUFACTURE THEREOF