File:PSM V14 D143 Components of edison acoustic invention.jpg

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Description _Components of Edison's acoustic invention
Date between 1878 and 1879
date QS:P,+1878-00-00T00:00:00Z/8,P1319,+1878-00-00T00:00:00Z/9,P1326,+1879-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 14
Author Unknown authorUnknown author
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current15:30, 5 August 2010Thumbnail for version as of 15:30, 5 August 20101,506 × 1,303 (151 KB)Ineuw (talk | contribs){{Information |Description = _Components of Edison's acoustic invention |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_14.djvu/143 |Date = 1878-1879 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Cate

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