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Title: Control box and two radioactive smoke detectors, one section [Go to resource]
Description: Control box and two radioactive smoke detectors, one sectioned from fire detection and alarm installation by Minerva Detector Co. Ltd., Twickenham,Middlesex,1965. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Creator: Minerva Detector Co. Ltd. (maker) Identifier: 1965-135/1 Go to resource More Like this...
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