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Title: Optical comparator used for the rapid checking of items such [Go to resource]
Description: Optical comparator used for the rapid checking of items such as gauges to close limits, using a mechanical feeler and an "optical lever". Made by Societe Genevoise d'Instruments de Physique in 1960. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: optical comparator Temporal: 1960 Source: Science Museum Creator: societe genevoise d'instruments de physique Identifier: 2001-718 Go to resource More Like this...
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