Rupert Englbrecht

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Burghausen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Foamed rubber erasers and process for the production thereof
- Patent number 4,485,520
- Issue date Dec 4, 1984
- Firma J. S. Staedtler
- Werner Handl
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES