Albert A. Voropaev

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Leningrad, SU

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Patents Grantslast 30 patents

Information Patent Grant
Non-consumable electrode
- Patent number 4,392,047
- Issue date Jul 5, 1983
- David G. Bykhovsky
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of treating electrodes intended for operation in argon as ca...
- Patent number 4,213,027
- Issue date Jul 15, 1980
- Vsesojuzny Nauchno-Issledovatelsky Proektno-Konstruktorsky i Teknologichesky...
- David G. Bykhovsky
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR