Oleg P. Semenovsky

Follow

Person

Donetsk, SU

People

Patents Grantslast 30 patents

Information Patent Grant
Method of producing shaped rolled sections
- Patent number 4,366,693
- Issue date Jan 4, 1983
- Julian M. Chumanov
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...