David Gemmell

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Belmont, Sutton, Surrey, GB

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Patents Grantslast 30 patents

Information Patent Grant
Control system
- Patent number 4,979,094
- Issue date Dec 18, 1990
- Possum Controls Limited
- David Gemmell
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Control apparatus for a display matrix
- Patent number 4,383,254
- Issue date May 10, 1983
- David Gemmell
- G06 - COMPUTING CALCULATING COUNTING