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You searched for Place California--South Pasadena Remove constraint Place: California--South Pasadena Rights Public Domain Mark 1.0 Remove constraint Rights: Public Domain Mark 1.0 Date Unknown Remove constraint Date: Unknown
Wooden box with handle at top and metal latch closure at front; interior: instructions for use printed on paper and inset into box lid; top face: window at center reveals pH scale "7-14" and millivolts "0-400"; control…
- Manufacturer Beckman Instruments, inc.
- Subject Hydrogen-ion concentration--Measurement--Instruments and Beckman Instruments, inc.