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Elmer Woodward hydraulic(oil pressure) turbine water wheel governor patent.

1106434 2.jpg Patent 363,875 sheet 2 of 3.ThumbnailsElmer E. Woodward's first oil pressure(hydraulic) water wheel governor.Patent 363,875 sheet 2 of 3.ThumbnailsElmer E. Woodward's first oil pressure(hydraulic) water wheel governor.Patent 363,875 sheet 2 of 3.ThumbnailsElmer E. Woodward's first oil pressure(hydraulic) water wheel governor.Patent 363,875 sheet 2 of 3.ThumbnailsElmer E. Woodward's first oil pressure(hydraulic) water wheel governor.