David M. Alexander

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Purcellville, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Biometric personal identification device
- Patent number D511113
- Issue date Nov 1, 2005
- Privaris, Inc.
- Benjamin F. Feldman
- D10 - Measuring, testing, or signalling instruments
Information Patent Grant
Attachable biometric personal identification device
- Patent number D511114
- Issue date Nov 1, 2005
- Privaris, Inc.
- Benjamin F. Feldman
- D10 - Measuring, testing, or signalling instruments