File:Beckman model 72 pH meter jw827b87k.tiff

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Beckman Model 72 pH Meter   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Photographer
UnknownUnknown
Title
Beckman Model 72 pH Meter
Description

Beckman Model 72 pH Meter

The Beckman Instruments Model 72 pH meter was a line operated version of the Model 76 Expanded Scale pH Meter, designed for routine use.

Published without a copyright notice in Beckman Instruments Feedback newsletter, v3 n3, April 1960 (box 44, folder 34)
Date 1960
date QS:P571,+1960-00-00T00:00:00Z/9
institution QS:P195,Q5090408
Accession number
Beckman Historical Collection
Credit line Science History Institute.
Notes Image downloaded with permission from the Science History Institute, as part of the Wikipedian in Residence initiative.
Source https://digital.sciencehistory.org/works/765371485
Permission
(Reusing this file)
This work is in the public domain in the United States because it was published in the United States between 1930 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
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 (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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Date/TimeThumbnailDimensionsUserComment
current21:19, 6 August 2019Thumbnail for version as of 21:19, 6 August 20192,653 × 3,190 (24.28 MB)wikimediacommons>Mary Mark Ockerbloom== {{int:filedesc}} == {{Photograph |photographer ={{unknown}} |title =Beckman Model 72 pH Meter |description =Beckman Model 72 pH Meter The Beckman Instruments Model 72 pH meter was a line operated version of the Model 76 Expanded Scale pH Meter, designed for routine use. Published without a copyright notice in Beckman Instruments ''Feedback'' newsletter, v3 n3, April 1960 (box 44, folder 34) |depicted people = |depicted place = |date...

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