Hans Larsson

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Helsingborg, SE

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Patents Grantslast 30 patents

Information Patent Grant
Double-walled structure in a ventilation duct system
- Patent number 6,062,270
- Issue date May 16, 2000
- Lindab AB
- Kent Hultberg
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...