Yordanka R. Atanassova

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Gabrovo, BG

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Patents Grantslast 30 patents

Information Patent Grant
Method of and apparatus for forming blanks by hydroplastic deformation
- Patent number 4,619,129
- Issue date Oct 28, 1986
- NPSP po Hydroplastichna Obrabotka na Metalite
- Georgi K. Petkov
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...