Search Results
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Beckman Instruments pH meter congratulations certificate
- 1977
The certificate offers congratulations on the acquisition of a Beckman pH meter and gently suggests the purchase of Beckman electrodes to use with the instrument.
Arnold Beckman invented his first pH meter in 1934 at…
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3 items
Beckman IR-2 Spectrophotometer Questionnaire
- Bulletin 191
- 1948-Jan
This questionnaire contains frequently asked questions and common issues with the performance of the IR-2.
The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O.…
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Directions for Beckman pH meter (Laboratory Model)
- 1938
This page of instructions would have been located inside the lid of the pH meter, so that users would be able to read the instructions upon opening its case.
Arnold Beckman invented his first pH meter in 1934 at the…
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Directions for Beckman pH Meter (Industrial Model)
- 1937-Dec
This page of instructions would have been located inside the lid of the pH meter, so that users would be able to read the instructions upon opening its case.
Arnold Beckman invented his first pH meter in 1934 at the…
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Pills for the Huns
- Part of The Edgewood Arsenal
- 1919-Mar
- Contributor United States. Army. Chemical Warfare Service
- Subject Phosgene, Chemical agents (Munitions)--Transportation, Chemical agents (Munitions)--Storage, Maryland--Edgewood (Harford County), Edgewood Arsenal (Md.), United States. Army. Chemical Warfare Service, Chemical agents (Munitions), Chemical warfare, World War (1914-1918)
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