Pavel S. Nefedov

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Donetskaya oblast, Zhdanov, SU

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for overhead submerged arc welding
- Patent number 4,994,644
- Issue date Feb 19, 1991
- Pavel A. Varenchuk
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of producing by brazing bimetallic cylindrical articles
- Patent number 4,886,203
- Issue date Dec 12, 1989
- Leonid G. Puzrin
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR