Arnold and Mabel Beckman with unidentified people at a Beckman Instruments location in China
- 1981
Dr. Arnold O. Beckman (1900-2004) invented the first commercially successful electric pH meter in 1934 and thus began a long career manufacturing scientific and medical instruments with National Technical Laboratories, Arnold O. Beckman, Inc., and Beckman Instruments. After his retirement he and his wife, Mabel, devoted their lives to philanthropy and specifically supporting scientific innovation.
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“Arnold and Mabel Beckman with Unidentified People at a Beckman Instruments Location in China,” 1981. Beckman Historical Collection, Box 55, Folder 75. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/9306sz33n.
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