Willy Kolliker

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Hagendorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Butt joints for panels and/or sections
- Patent number 5,022,208
- Issue date Jun 11, 1991
- Swiss Aluminium Ltd.
- Rainer Ehrat
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL