File:Cary+Beckman 1941 original of Fig 9 Minimum spectral band widths 2012-002 b17f20 005 crop.jpg

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Figure 9. Minimum spectral band widths which permit scale readings to 0.1 percent   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
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Title
Figure 9. Minimum spectral band widths which permit scale readings to 0.1 percent
Description

Original illustration used for Figure 9. Minimum spectral band widths which permit scale readings to 0.1 percent from from Cary, H. H.; Beckman, Arnold O. (1941). "A Quartz Photoelectric Spectrophotometer". Journal of the Optical Society of America. 31 (11): p. 688. doi:10.1364/JOSA.31.000682.

No copyright renewal for the journal (first renewal appears for 1951). No copyright renewal for the paper.

No copyright renewal for the photograph (checked 1968, 1969).
Date 1941
date QS:P571,+1941-00-00T00:00:00Z/9
institution QS:P195,Q5090408
Accession number
Finding Aid to the Beckman Historical Collection 1911–2011 (Bulk 1935–2004 ). Science History Institute. Archives. ""Click on 'Beckman Historical Collection Finding Aid' to go to full document.""
Notes Image downloaded with permission from the Science History Institute, as part of the Wikipedian in Residence initiative.
Source Science History Institute
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Public domain
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.

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current20:13, 19 September 2016Thumbnail for version as of 20:13, 19 September 20163,185 × 2,363 (3.14 MB)Mary Mark Ockerbloom== {{int:filedesc}} == {{Photograph |photographer ={{unknown}} |title =Figure 9. Minimum spectral band widths which permit scale readings to 0.1 percent |description =Original illustration used for Figure 9. Minimum spectra...
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