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Patent model for a telegraph register, designed by William H. Sawyer, probably related to the 150th anniversary of the Patent Act
Public domain

Patent model for a telegraph register, designed by William H. Sawyer, probably related to the 150th anniversary of the Patent Act

Harris & Ewing · 1940-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Subjects
glass negatives
Credit linePatent model for a telegraph register, designed by William H. Sawyer, probably related to the 150th anniversary of the Patent Act. 1940-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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