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Title: Parkinson-Cowan laboratory gas test meter, wet, no. 1073, c. [Go to resource]
Description: Parkinson-Cowan laboratory gas test meter, wet, no. 1073, c. 1965. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: gas meter
wet
testSource: Science Museum Identifier: 1975-366 Go to resource More Like this...
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