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Title: Colorimeter patented 1928 by Klett Manufacturing Co. Inc., N [Go to resource]
Description: Colorimeter patented 1928 by Klett Manufacturing Co. Inc., New York, in fitted wooden box, plus separate box of 60 colour slides License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: colorimeter Source: Science Museum Identifier: 1988-334 Go to resource More Like this...
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