Nikolai N. Gromov

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Leningrad, SU

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for drying and calcinating coated welding electrodes with...
- Patent number 4,490,922
- Issue date Jan 1, 1985
- Alexandr A. Gorodetsky
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR