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Digital Collections

Business correspondence

Memo from Walter Donner to John E. Leonard

  • 1957-Mar-14

Rights

In Copyright

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The memo discusses the conversion of pH meter oxygen electrodes for use in portable oxygen meters.

Property Value
Addressee
Author
Format
Genre
Extent
  • 8.5 in. W x 11 in. L
Language
Subject
Rights In Copyright
Rights holder
  • Danaher Corporation
Credit line
  • Courtesy of Science History Institute

Institutional location

Department
Collection
Series arrangement
  • Sub-series 3. Product Files
  • Series II. Business Activities Files
Physical container
  • Box 19, Folder 2

View collection guide View in library catalog

Related Items

Cite as

Donner, Walter. “Memo from Walter Donner to John E. Leonard,” March 14, 1957. Beckman Historical Collection, Box 19, Folder 2. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/9w032350p.

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The Science History Institute recognizes there are materials in our collections that may be offensive or harmful, containing racist, sexist, Eurocentric, ableist, or homophobic language or depictions. The history of science is not exempt from beliefs or practices harmful to traditionally marginalized groups. The Institute is engaged in ongoing efforts to responsibly present and address the evidence of oppression and injustice inextricable from the history of science. If you would like to learn more about our ongoing efforts or if you encounter harmful, inaccurate, or insufficient descriptions, please contact us at digital@sciencehistory.org.