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  Business correspondence, Photographs

  Memo from Jan W. Haagen-Smit to John Leonard

  • 1957-Nov-06
  • 1957-Nov-13

  In this memo, Jan Haagen-Smit includes a labeled photograph of the testing set-up for the Beckman oxygen electrode, which includes Beckman Oxygen Analyzers. The memo (but not the photograph) in this digitized image is a…

  • Addressee Leonard, John E.
  • Author Haagen-Smit, Jan Willem
  • Subject Electrodes, Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, inc.