File:PSM V64 D273 Stroboscope for examining vocal chord vibration.png

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English: Stroboscope for examining vocal chord vibration
Date between 1903 and 1904
date QS:P,+1903-00-00T00:00:00Z/8,P1319,+1903-00-00T00:00:00Z/9,P1326,+1904-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 64
Author Unknown authorUnknown author

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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1930, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
United States
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current04:03, 18 September 2011Thumbnail for version as of 04:03, 18 September 2011849 × 1,211 (159 KB)Ineuw (talk | contribs)

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