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Vitold A. Kezik

Overall (All Time): #2,314,329 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5050687 Compression-vacuum action percussive machine Ivan A. Prokhorov, Igor S. Agafonov, Jury N. Kolgan, Boris G. Goldshtein, Igor Nikolaev 1991-09-24
4991664 Compression-vacuum percussive action machine Jury N. Kolgan, Nikolai M. Kirjushin, Ivan A. Prokhorov, Evgeny I. Ryabokon 1991-02-12