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IMPROVEMENT IN WATER GOVERNOR CONTRAPTION, CIRCA 1887. AD.

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Photo sizes

✔ S - small (294 x 432)
✔ M - medium (404 x 594)
✔ L - large (514 x 756)
✔ XXL - huge (845 x 1242)
Original

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Amos W. Woodward Manufacturer advertisement(1890) from the archives.

Elmer E. Woodward's state-of-the-art oil pressure relay valve water wheel governor patented in 1912.

Posted on: Friday 26 February 2016
Albums: HISTORICAL WATER POWER ENGINEERING.
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