William Ammer

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Allison Park, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Oblique angled suspension caster fork for wheelchairs
- Patent number 6,892,421
- Issue date May 17, 2005
- The United States of America as represented by the Department of Veterans Aff...
- Rory A. Cooper
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Oblique angled suspension caster fork for wheelchairs
- Publication number 20040111830
- Publication date Jun 17, 2004
- Rory A. Cooper
- B60 - VEHICLES IN GENERAL