Stefan B. Vodenicharov

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Sofia, BG

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Patents Grantslast 30 patents

Information Patent Grant
Machine for the explosive forming of a workpiece of sheet material
- Patent number 4,471,640
- Issue date Sep 18, 1984
- Institute po Metaloznanie i Technologia na Metalite
- Hristo G. Kortenski
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...