Werner Duismann

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Dorsten, DE

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Patents Grantslast 30 patents

Information Patent Grant
Identification of absorbent material with a thermostable colorant a...
- Patent number 5,032,452
- Issue date Jul 16, 1991
- Huels Aktiengesellschaft
- Bernd Nowitzki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS