Category:PD US NIST
From Wikimedia Commons, the free media repository
Images and media produced by the United States National Institute of Standards and Technology
To place an image in this category, add the tag {{PD-USGov-NIST}} to the bottom of the image's description page. If you are not sure which category an image belongs to, see Commons:Copyright tags.
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Pages in category "PD US NIST"
The following 2 pages are in this category, out of 2 total.
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Media in category "PD US NIST"
The following 55 files are in this category, out of 55 total.
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