U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 115
£7 LJia4(:/&c >J&&. 5 PETEflS CO., PHOTO-UTHO., < {No Model.) No. 477,448, 2 Sheet6—Sheet 2. J. L. F. PINTO. WORKMANS TIME INDICATOR. Patented June 21, 1892. -*&/& jp^.ys £4r • r i-i k 4£ £3 4J 46 nnnnn & £1 & ££ FWTWTfe i J9« M fa £& J CI U &C1 5^5 … 5»3 {nndi ^Tzyr.Sl CtofcktiVlbUo _^ £531 iattSt United States Patent Office, JOAO LOPES FERREIRA PINTO, OF RIO DE JANEIRO, BRAZIL.WORKMANS TIME-INDICATOR. SPECIFICATION forming part of Letters Patent No. 477,448, dated June 21, 1892. Application filed October 2, 1890. Serial No. 366,845, (No…
Clocks and watches
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