Volker Donn

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Heidenheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Magnifying glass
- Patent number D333313
- Issue date Feb 16, 1993
- Carl-Zeiss-Stiftung, Heidenheim/Brenz
- Joachim Hornschu
- D16 - Photography and optical equipment
Information Patent Grant
Binocular telescope
- Patent number RE30665
- Issue date Jul 7, 1981
- Carl Zeiss-Stiftung
- Erwin Altenheiner
- 350 -