PH meter by Doran Instrument Co. Ltd.

Made:: 1940-1960 in Stroud

maker:: Doran Instrument Company Limited

PH meter by Doran Instrument Co. Ltd., Stroud, Gloucester [Patent No. 593920, Serial No 3533], with notes and manual

Details

Category:: Science Teaching

Object Number:: 1995-107

Materials:: wood and metal

Measurements:: overall: 300 x 280 x 460 mm

type:: ph meters

credit:: University College School

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PH meter by Doran Instrument Co. Ltd.

Details

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