U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 391
iF^ff FtyJS. T -V r/.j/£ J?<yJ6. … detect- t/ayTldd, United States Patent Office. JACOIJ GANSS, OF BROOKLYN, NEW YORlCTIME-STAMP. SPECIFICATION forming part of Letters Patent No. 486,458, dated November 22, 1892.Application Sled June 27,1889. Serial No. 315,794. Qfo raoicl.) To all whom it may concern: Be it known that I, Jacob…
Clocks and watches
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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