File:Popular Science Dec 1918 p68 - History of boat propulsion, Water caterpillar.jpg

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English: The water caterpillar or track drive propulsion for boats predated the use of land based tracked vehicles by about 50 years.
Date
Source Popular Science, Dec 1918, p68, Printed in the United States

Scanned by Google Books

Uploaded by User:DMahalko, Dale Mahalko, Gilman, WI, USA -- Email: dmahalko@gmail.com
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, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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current21:04, 19 February 2009Thumbnail for version as of 21:04, 19 February 2009813 × 322 (40 KB)DMahalko (talk | contribs){{Information |Description={{en|1=The water caterpillar or track drive propulsion for boats predated the use of land based tracked vehicles by about 50 years. }} |Source=Popular Science, Dec 1918, p68, Printed in the United States, Scanned by Google Books

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