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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