Valentin N. Bogdanov

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Leningrad, SU

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Patents Grantslast 30 patents

Information Patent Grant
Continuous flash butt-welding machine
- Patent number 4,159,408
- Issue date Jun 26, 1979
- Vsesojuzny Nauchno-Issledovatelsky Institut po Stroitelstvu Magistralnykh Tru...
- Viktor S. Lifshits
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR