File:EB1911 Crystallography Figs. 19 & 20.jpg

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EB1911_Crystallography_Figs._19_&_20.jpg (468 × 206 pixels, file size: 18 KB, MIME type: image/jpeg)

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English: EB1911 Crystallography Figs. 19 & 20
Date
Source 1911 Encyclopædia Britannica, vol. 7, p.574 Crystallography article
Author AnonymousUnknown author

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:EB1911_Crystallography_Figs._19_%26_20.jpg

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1 January 1911Gregorian

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current11:47, 19 November 2017Thumbnail for version as of 11:47, 19 November 2017468 × 206 (18 KB)DivermanAUUser created page with UploadWizard