Karl Gunnar Jonason

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724 62 Vasteras, SW

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a flat heat-exchanger tube from thin, flexi...
- Patent number 4,024,619
- Issue date May 24, 1977
- Granges Essem Aktiebolag
- Karl Gunnar Jonason
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of affixing surface enlarging members in the form of coheren...
- Patent number 4,025,035
- Issue date May 24, 1977
- Granges Essem Aktiebolag
- Karl Gunnar Jonason
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus for affixing surface enlarging members in the form of coh...
- Patent number 3,960,308
- Issue date Jun 1, 1976
- Karl Gunnar Jonason
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR