Walter Barth

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Nuremberg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for fastening an eraser to a pencil
- Patent number 4,520,548
- Issue date Jun 4, 1985
- Bleistiftmaschinenfabrik Dipl. Ing. Karl Zuber GmbH & Co. KG
- Harald H. Kremser
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Apparatus for securing parts on elongated writing instruments, in p...
- Patent number 4,509,245
- Issue date Apr 9, 1985
- Bleistiftmaschinenfabrik Dipl. Ing. Karl Zuber GmbH & Co. KG
- Walter Barth
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES