Ivan O. Ramnesten

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Eskilstuna, SE

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Patents Grantslast 30 patents

Information Patent Grant
Mandrel for cold forging internally profiled tubes or cylinders
- Patent number 4,429,561
- Issue date Feb 7, 1984
- Forenade Fabriksverken
- Ivan O. Ramnesten
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Cold forging mandrel with threads
- Patent number 4,428,222
- Issue date Jan 31, 1984
- Forenade Fabriksverken
- Ivan O. Ramnesten
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...