The letter discusses Beckman's scheduled meetings, marketing strategies for the pH meter, and interest in postal meters.
Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off rapid development not only of Beckman Instruments, Inc. but also of the electronic scientific instrument industry.
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|Original file type||TIFF|
|View in library catalog|
Beckman, Arnold O. “Letter from Arnold Beckman to I. H. Lyons,” August 17, 1937. Beckman Historical Collection, Box 14, Folder 9. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/cc08hg00q.
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