U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 633
3^ c dl *y< THE MORRIS PCTEftS CO. PHOTO-UTHO.. (No Model.) 2 Sheets—Sheet 2. J. W. NUNAMAKER. ALARM FOR WATCHES. Patented Feb. 28, 1893. JZ£^7 ^ … & -ZJc*7 6* I ^<3 ^■Sg^^ ^ t> /
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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