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

United States. Patent Office · [Washington : United States Patent Office] · leaf 161

An illustration from U.S. patents covering time keeping mechanisms, 1892, leaf 161 — Jrcr/isrv (ocuiSijxi /farc/i^ aa. (No Model.) No. 478,284, J. C. KOCH. WORKMANS TIME RECORDER. 3 Sheets—Sheet 2. Patented July 5, 1892, … i/rZtnewet: ^ (No Model.) No. 478,284. J, C. KOCH. WORKMANS TIME RECORDER. 3 Sheets—Sheet 3. Patented July 5, 1892, a

Clocks and watches

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

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