U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 401
THE NOHRIS PETERS CO, PHOTO-LtTHO . WASHINGTON. O-( (No Model.) 2 Sheets—Sheet 2. B. HAAS, Jr. & G. TROUYE. ILLUMINATED TIMEPIECE. No. 486,563, FIG. 2 : Patented Nov. 22, 1892. … Tug WMn PCTE«S CO, PHOTO-LITHC, WA4MIN United States Patent Office. BENJAMIN HAAS, JR., AND GUSTAVE TROUVE, OF PARIS, FRANCE.ILLUMINATED TIMEPIECE. SPECIFICATION forming part of Letters Patent No. 486,563, dated November 22,1892.Application filed November 9, 1891, Serial No. 411,332. (No model.)…
Clocks and watches
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