U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 631
ling of the respective weights the lever isswung and the said upright arm comes incontact with or is removed from a switch-pin,whereby the electric circuit, to set the wind-ing mechanism in operation, is established orbroken, substantially as set forth. Signed at New York, in the county of NowYork… … 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 ^
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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