Alexander Krupin

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Tallinn, EE

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Patents Applicationslast 30 patents

Information Patent Application
Chemical Beneficiation of Raw Material Containing Tantalum-Niobium
- Publication number 20090202405
- Publication date Aug 13, 2009
- Alexander Krupin
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...