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Graseby plc, maker of systems for detecting potentially lethal chemical and biological warfare agents.
1950 Formation Pye Dynamics
1970s Began supplying the Ministry Of Defence with products for anti-terrorist work, to detect explosive vapours; developed the Ion Mobility Spectrometry (IMS) technology and became a global leader in vapour detection based on this.
1980s The IMS expertise was extended to detecting chemical warfare agents.
Late 1990s: Graseby won the contract for the Prototype Biological Detection System (PBDS) for the UK Ministry of Defence - the forerunner of modern bio-detection and identification systems.