Carl Otto Fredriksson

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Goteborg, SW

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Patents Grantslast 30 patents

Information Patent Grant
Solutions for chemically polishing surfaces of copper and its alloys
- Patent number 4,086,176
- Issue date Apr 25, 1978
- Nordnero AB
- Harry Ericson
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Solutions for cleaning surfaces of copper and its alloys
- Patent number 4,051,057
- Issue date Sep 27, 1977
- Harry Ericson
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...