File:PSM V33 D670 Writing machine for the blind devised by e l youmans.jpg

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Description Writing machine for the blind devised by E L Youmans
Date between 1887 and 1888
date QS:P,+1887-00-00T00:00:00Z/8,P1319,+1887-00-00T00:00:00Z/9,P1326,+1888-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 33
Author Unknown authorUnknown author
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current01:55, 30 September 2010Thumbnail for version as of 01:55, 30 September 20101,828 × 643 (108 KB)Ineuw{{Information |Description = Writing machine for the blind devised by E L Youmans |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_33.djvu/670 |Date = 1887-1888 |Author = Unknown |Permission = {{PD-old}} |other_versions =

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