File:Letter from Durand Churchill, Jr. to Arnold O. Beckman - DPLA - 78d3f4d1d1e989d21aac5a9565ec6b50.jpg

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Letter from Durand Churchill, Jr. to Arnold O. Beckman   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Creator
InfoField
Churchill, Durand Jr
Title
Letter from Durand Churchill, Jr. to Arnold O. Beckman
Description
Letter regarding an inquiry from the United States War Department about the sensitivity of Pauling Oxygen Meter. Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing such diverse jobs as monitoring astronauts’ respiration, maintaining packaged food safety, and preventing blindness in newborn babies.
Date 1944-Jul-19
institution QS:P195,Q5090408
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(Reusing this file)
Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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current21:53, 4 October 2022Thumbnail for version as of 21:53, 4 October 20222,542 × 3,284 (1.08 MB)DPLA bot (talk | contribs)Uploading DPLA ID 78d3f4d1d1e989d21aac5a9565ec6b50

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