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U.S. patents covering time keeping mechanisms (1923)

United States. Patent Office · [Washington, D.C.] : U.S. Patent Office · leaf 564

An illustration from U.S. patents covering time keeping mechanisms, 1923, leaf 564
July 3, 1923. 1,460,806 V. W. THOMAS TIMBR ELEVATOR FOR FORD CARS Filed Feb. 21 . 1921 … /huj'<a~i*^/ /£^,,C/&a^M-, v^t^i^v.

Clocks and watches

Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.

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