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

56873428f1cc8ec34853f014b03d8a4b.jpg The Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).ThumbnailsData from Water Power Engineering, circa 1908.The Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).ThumbnailsData from Water Power Engineering, circa 1908.The Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).ThumbnailsData from Water Power Engineering, circa 1908.The Woodward Governor Factory on Mill Street in the Water Power District in Rockford, Illinois(1910-1941).ThumbnailsData from Water Power Engineering, circa 1908.

This new type of oil pressure relay valve water wheel governor was filed for a patented by Elmer E. Woodward under the patent number 1,106,434 in 1912 and granted in 1914.

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