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Hay Gravity-Feed Oiler, Patent Model
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This oiler was submitted to the U.S. Patent Office with the application for the patent issued to Peter D. Hay (assignor to the Michigan Lubricator Co.), of Detroit, Michigan, June 9, 1888, no. 384762.
National Museum of American History’s own descriptionCredit lineHay Gravity-Feed Oiler, Patent Model. 1888. Hay, Peter D.. National Museum of American History. CC0.
