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U.S. patents covering time keeping mechanisms (1892)

United States. Patent Office · [Washington : United States Patent Office] · leaf 57

An illustration from U.S. patents covering time keeping mechanisms, 1892, leaf 57 — M -*9- … WI2JVJ5SSJES /f Attorney hc nouns pith, co.. tmoto-utho.. WASHINGTON, 0. I (No Model.) No. 475,108. J. A. GUINN. RAILWAY TIME SIGNAL. 2 Sheets—Sheet 2. Patented May 17, 1892. UP

Clocks and watches

Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.

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