Brian C. Jefferis

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Hampshire, GB

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Patents Grantslast 30 patents

Information Patent Grant
Vehicle detection systems
- Patent number 5,339,081
- Issue date Aug 16, 1994
- Peek Traffic Limited
- Brian Jefferis
- G08 - SIGNALLING
Information Patent Grant
Inductive loop presence detector with cross talk filter
- Patent number 4,873,494
- Issue date Oct 10, 1989
- Sarasota Automation Limited
- Brian C. Jefferis
- G08 - SIGNALLING