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You searched for Genre Scientific apparatus and instruments Remove constraint Genre: Scientific apparatus and instruments Subject Beckman Instruments, inc. Remove constraint Subject: Beckman Instruments, inc. Date 1950 Remove constraint Date: 1950
Self contained pH meter with wooden exterior; hinged top door opens to reveal meter face and inlaid paper instructions for use; the dial is calibrated from pH 0 to pH 13 in .1 pH divisions; porcelain enamel lined…
- Manufacturer Beckman Instruments, inc.
- Subject Hydrogen-ion concentration--Measurement--Instruments, Beckman Instruments, inc., and Electrodes, Glass