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Amos Walter Woodward patent governor from 1870

Amos Walter Woodward patent governor from 1870.jpg Amos Walter Woodward's patent governor from 1870.ThumbnailsAmos Woodward's first friction water wheel governor.Amos Walter Woodward's patent governor from 1870.ThumbnailsAmos Woodward's first friction water wheel governor.Amos Walter Woodward's patent governor from 1870.ThumbnailsAmos Woodward's first friction water wheel governor.
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EXIF Metadata

Make
Canon
Model
Canon PowerShot SX130 IS
DateTimeOriginal
2012:01:09 10:59:08
ApertureFNumber
f/3.5

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