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This letter was written in response to Arnold O. Beckman's congratulations to Linus Pauling upon winning the Nobel Prize in Chemistry.
The color photographs depict an instrument owned by Jack Kertzman of Perma Pure Products. Kertzman apparently purchased the Model P oxygen meter from an Exxon surplus sale, used it for many years in his laboratory, and…
The letter regards the development of Models K and L oxygen meters, recommendations for which are ready for further testing by the National Defense Research Committee, and a note that some are unsuitable due to…
- 1934 – 1935
A Pasadena garage was the first home of the National Postal Meter Company, founded by Arnold Beckman in 1934. The company soon became National Technical Laboratories, with a focus on pH meters. In 1935, the company…
- Circa 1940 – circa 1979
Though the photo set is identified as Beckman with "employees," some of the photographs depict ceremonies and visits to non-corporate locations, like CalTech. Some photographs are attributed, dated (1941, 1962, 1967),…
In this letter, Evans discusses a new electrode design for use in Beckman pH meters.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an…
In this letter, Beckman discusses acidimeter production, personnel issues, patent applications, and the naming of the instrument.
Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH…
Linus Pauling's oxygen meter was developed as a military project and the details were classified. In this letter, Pauling requested permission to discuss the oxygen meter at a Caltech seminar. He also states a desire to…
- Part of Arnold Beckman at award dinners
Arnold Beckman, flanked by two unidentified men, receiving the City of Pasadena's Arthur Noble Civics Medal.