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The Barry-Hayes Papers are maintained at Independence Seaport Museum, Philadelphia, PA. For more information, visit Signed by Acting Commissioner Ellis Spear. Patent Number 110, 432. Patent is "improvements in lubricating compounds for steam and other packing".

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Full TitlePatent, To: William M. Canfield From: United States Patent Office, March 1, 1875.
Author United States Patent Office.
Contributor Spear, Ellis.
Date Added 8 January 2014
Publish Date 1875-03-01
Source Barry-Hayes Papers. [Series XVII, Box 11, Folder 17, Item 1]