Matthias Frei

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Wettingen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method for the application and reading of, and bottle with opticall...
- Patent number 4,990,792
- Issue date Feb 5, 1991
- Elpatronic AG
- Matthias Frei
- B44 - DECORATIVE ARTS
Information Patent Grant
Resistance seam welding machine
- Patent number 4,803,325
- Issue date Feb 7, 1989
- Elpatronic AG
- Matthias Frei
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Device for applying a protective coating to the weld or solder seam...
- Patent number 4,674,435
- Issue date Jun 23, 1987
- Elpatronic AG
- Matthias Frei
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...