David P. Stevens

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Billerica, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Self test for obstacle detection system
- Patent number 5,235,315
- Issue date Aug 10, 1993
- Armatron International, Inc.
- James R. Cherry
- B60 - VEHICLES IN GENERAL
Information Patent Grant
System and method for detecting the presence of objects in the path...
- Patent number 5,160,927
- Issue date Nov 3, 1992
- Armatron International, Inc.
- James R. Cherry
- B60 - VEHICLES IN GENERAL