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Title: Working model of Chubb detector lock, two true and one false [Go to resource]
Description: Working model of Chubb detector lock, two true and one false keys, sectioned, on stand ( and stand for keys) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1966-369 Go to resource More Like this...
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