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Hartnell, K.
view article (1.0)Product Profile--The HART System for Protecting EDP Equipment.Hartnell Microelectronics Ltd.Fire Surveyor, Vol. 18, No. 6, 27-29, December 1989Hartnell, K.
view article (1.0)VESDA (Very Early Smoke Detection Apparatus)--Air Sampling Smoke Detecting System.Hartnell Alarm Control Ltd., Wallsend, EnglandUniversity of Edinburgh. Recent Developments in Fire Detection and Suppression Systems. (With Additional Papers From a Course of the Same Title--July 8-9, 1987). November 10-12, 1986, Edinburgh, Scotland, 42 p., 1987