Werner Zahn

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Geroldsgruen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Refillable soft lead pencil
- Patent number 6,149,331
- Issue date Nov 21, 2000
- A.W. Faber-Castell Unternehmensverwaltung GmbH & Co.
- Juergen Raps
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES