File:PSM V25 D203 Keyt compound sphygmograph.jpg

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Description Keyt compound sphygnograph
Date
Source Popular Science Monthly Volume 25
Author Unknown authorUnknown author
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current19:40, 2 September 2010Thumbnail for version as of 19:40, 2 September 20102,173 × 1,995 (553 KB)Ineuw{{Information |Description = Keyt compound sphygnograph |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_25.djvu/203 |Date = 1884 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category:Popular Science

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