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Title: Photoelectic densitometer, by Cambridge Scientific Instrumen [Go to resource]
Description: Photoelectic densitometer, by Cambridge Scientific Instruments Co. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: densitometer Temporal: 1900-1980 Source: Science Museum Creator: Cambridge Instrument Company Limited Identifier: 1994-1108 Go to resource More Like this...
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