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Amos Woodward's first friction water wheel governor.

Amos Woodward friction governor from 1870 patent 103_813.jpg A patent model of Amos Woodward's first governor(patent number 103,813).ThumbnailsAmos Walter Woodward's patent governor from 1870.A patent model of Amos Woodward's first governor(patent number 103,813).ThumbnailsAmos Walter Woodward's patent governor from 1870.A patent model of Amos Woodward's first governor(patent number 103,813).ThumbnailsAmos Walter Woodward's patent governor from 1870.
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EXIF Metadata

Make
Canon
Model
Canon PowerShot SX130 IS
DateTimeOriginal
2012:01:09 10:59:30
ApertureFNumber
f/3.5

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