Joseph F. Andera

Follow

Person

Palatine, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for testing visual accuity and contrast sensit...
- Patent number 5,216,458
- Issue date Jun 1, 1993
- Stereo Optical Company, Inc.
- Joseph F. Andera
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Vision tester with color corrected illuminating system
- Patent number 4,844,607
- Issue date Jul 4, 1989
- Stereo Optical Company, Inc.
- Joseph F. Andera
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE