Donald W. Bilsbarrow

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Tucson, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Forced dilution system and method for emissions measurement systems
- Patent number 5,739,413
- Issue date Apr 14, 1998
- Envirotest Systems, Inc.
- Bruce R. Kohn
- G01 - MEASURING TESTING
Information Patent Grant
Tapered roller dynamometer
- Patent number 5,193,386
- Issue date Mar 16, 1993
- Hamilton Test Systems, Inc.
- Jack E. Hesse
- G01 - MEASURING TESTING
Information Patent Grant
Vehicle brake test system
- Patent number 4,893,242
- Issue date Jan 9, 1990
- United Technologies Corporation
- John N. Rogers
- G01 - MEASURING TESTING