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Title: "Powermask", comprising face mask and separate filter unit, [Go to resource]
Description: "Powermask", comprising face mask and separate filter unit, from the Occupational Health Department of the London School of Hygiene and Tropical Medicine, by Siebe Gorman, 1970-1985 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: gas mask Source: Science Museum Identifier: 1992-557/23 Go to resource More Like this...
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