Dieter Bartholdsten

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Hanover, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing disk-shaped information carriers
- Patent number 4,409,169
- Issue date Oct 11, 1983
- Polygram GmbH
- Dieter Bartholdsten
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL