Stephen H. Chambers

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Cambridge, GB

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic marker and method for modifying the magnetic properties th...
- Patent number 5,455,563
- Issue date Oct 3, 1995
- Esselte Meto International Produktions GmbH
- Dafydd G. Davies
- G08 - SIGNALLING
Information Patent Grant
Magnetic devices
- Patent number 4,960,651
- Issue date Oct 2, 1990
- Scientific Generics Limited
- Robert M. Pettigrew
- G08 - SIGNALLING
Information Patent Grant
Article detection and/or recognition using magnetic devices
- Patent number 4,940,966
- Issue date Jul 10, 1990
- Scientific Generics Limited
- Robert M. Pettigrew
- G08 - SIGNALLING