U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 83
VNV.VAW \xV (No Model. 2 Sheets—Sheet 2. F. M. SCHMIDT. ELECTRIC SELF WINDING CLOCK. No. 475 809, Patented May 31, 1892, fas … /7(f. T V 3 ,1 /W-/ f A ited States Patent Office, FREDERICK M. SCHMIDT, OF BROOKLYN, NEW YORK.ELECTRIC SELF-WINDING CLOCK. SPECIFICATION forming part of Letters Patent Mb, 473,809, dated May 31,1892. Application filed October 9,1891. Serial No. 408,219. (No model.) To all whom it may concern: Be…
Clocks and watches
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