5 photos
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Amos W. Woodward's patent for Improvement in Water- Governors
19 photos
44 photos in 3 sub-albumsTo read more Woodward patents go to the Pinterest.com web-site and type in Woodward Governor Company patents.
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Amos W. Woodward patent for a pump, circa 1879.
6 photos
11 photos in 1 sub-album -
Prime Mover Control Governor Patents.
10 photos
31 photos in 1 sub-album