Siegfried Richter

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Fullinsdorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Process for etching and preparing nickel-polyester offset printing...
- Patent number 4,233,110
- Issue date Nov 11, 1980
- Swiss Aluminum Ltd.
- Siegfried Richter
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...