Hay Gravity-Feed Oiler, Patent Model
National Museum of American History

Hay Gravity-Feed Oiler, Patent Model

Hay, Peter D. · 1888

brass, glass (overall material)
National Museum of American History
CC0 — Public Domain
National Museum of American History

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.

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