David Appleby

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Beauchamp, GB

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Patents Grantslast 30 patents

Information Patent Grant
Smoke detector sensitivity testing apparatus
- Patent number 5,670,946
- Issue date Sep 23, 1997
- No Cilmb Products Limited
- Stephen Ellwood
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Information transmission system
- Patent number 4,864,519
- Issue date Sep 5, 1989
- Gent Limited
- David Appleby
- G08 - SIGNALLING