U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 385
s*3 (No Model.) No. 486,458, 6 Sheets—Sheet 3. J. GANSS. TIME STAMP. Patented Nov. 22, 1892. J%, d. … (No Model.) No. 486,458 6 Sheets—Sheet 4. J. QANSS. TIME STAMP. Patented Nov. 22, 1892. JKy.7
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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