Karl Beyer

Follow

Person

Meyrin-Geneva, CH

People

Patents Grantslast 30 patents

Information Patent Grant
Spectacle frame with resilient hinges
- Patent number 4,832,479
- Issue date May 23, 1989
- Karl-Heinz Beyer
- G02 - OPTICS
Information Patent Grant
Elastic hinge for eyeglasses
- Patent number 4,689,851
- Issue date Sep 1, 1987
- LN Industries S.A.
- Karl Beyer
- G02 - OPTICS
Information Patent Grant
Hinge for spectacles
- Patent number 4,244,081
- Issue date Jan 13, 1981
- La National S.A.
- Karl Beyer
- G02 - OPTICS