Stanislav D. Dobrovolsky

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Kiev, SU

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Patents Grantslast 30 patents

Information Patent Grant
Program control device for controlling flash butt welding process
- Patent number 4,471,203
- Issue date Sep 11, 1984
- Vladimir K. Lebedev
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Doughnut-type transformer for resistance butt welding
- Patent number 4,297,665
- Issue date Oct 27, 1981
- Boris E. Paton
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ring transformer for resistance butt welders
- Patent number 4,249,153
- Issue date Feb 3, 1981
- Boris E. Paton
- H01 - BASIC ELECTRIC ELEMENTS