Stefan Hasenzahl

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Darmstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Dampening-unit roller of a printing machine
- Patent number 6,029,571
- Issue date Feb 29, 2000
- Heidelberger Druckmaschinen AG
- Gerhard Johner
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printing machine roller and method of production thereof
- Patent number 5,647,279
- Issue date Jul 15, 1997
- Heidelberger Druckmaschinen AG
- Gerhard Johner
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS