Ludwig Schleif

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7580 Buhl, DE

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Patents Grantslast 30 patents

Information Patent Grant
Ball point pen with two cartridges
- Patent number 4,948,285
- Issue date Aug 14, 1990
- Ludwig Schleif
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ball-point pen with integral stamping equipment
- Patent number 4,606,665
- Issue date Aug 19, 1986
- Ludwig Schleif
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES