Roger Weil

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Lausanne, CH

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Patents Grantslast 30 patents

Information Patent Grant
Desensitizing ink for wet offset printing
- Patent number 4,599,111
- Issue date Jul 8, 1986
- Sicpa Holding SA
- Albert Amon
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Desensitizing ink for wet offset printing
- Patent number 4,597,793
- Issue date Jul 1, 1986
- Sicpa Holding S.A.
- Albert Amon
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Desensitizing ink for the receiving surface of a chemical duplicati...
- Patent number 4,287,234
- Issue date Sep 1, 1981
- Sipca Holding S.A.
- Albert Amon
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS