Kathrin Keller

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Lahnau, DE

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Patents Grantslast 30 patents

Information Patent Grant
Wide-angle slip-on viewfinder on rangefinder cameras for photograph...
- Patent number 7,706,682
- Issue date Apr 27, 2010
- Leica Camera AG
- Kathrin Keller
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
WIDE-ANGLE PHOTOGRAPHIC OBJECTIVE
- Publication number 20220066176
- Publication date Mar 3, 2022
- LEICA CAMERA AG
- Stefan ROTH
- G02 - OPTICS
Information Patent Application
Wide-angle slip-on viewfinder on rangefinder cameras for photograph...
- Publication number 20080031613
- Publication date Feb 7, 2008
- Leica Camera AG.
- Kathrin Keller
- G02 - OPTICS