Alexandr Yakovlevich Medvedev

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Leningrad, SU

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Patents Grantslast 30 patents

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Non-consumable electrode for plasma-arc welding
- Patent number 4,304,984
- Issue date Dec 8, 1981
- Arkady L. Bolotnikov
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Plasma arc torch
- Patent number 4,055,741
- Issue date Oct 25, 1977
- David Grigorievich Bykhovsky
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Apparatus for plasma working of electrically-conductive materials a...
- Patent number 4,024,373
- Issue date May 17, 1977
- David Grigorievich Bykhovsky
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for striking main arc between the electrode of plasmatron an...
- Patent number 3,997,756
- Issue date Dec 14, 1976
- David Grigorievich Bykhovsky
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR