Oleg V. Alexeev

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Krasnoyarsky krai, Achinsk, SU

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Patents Grantslast 30 patents

Information Patent Grant
Method for the production of alumina
- Patent number 4,256,709
- Issue date Mar 17, 1981
- Viktor M. Sizyakov
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES