Stepan E. Azoian

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Erevan, SU

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing sapphire tubes
- Patent number 4,416,723
- Issue date Nov 22, 1983
- Boris B. Pelts
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method and apparatus for producing sapphire tubes
- Patent number 4,325,917
- Issue date Apr 20, 1982
- Boris B. Pelts
- C30 - CRYSTAL GROWTH