U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 793
<on<ciA,(/jf (No Model.; No. 498.022. H. H. PATTEE. ELECTRIC CURRENT TIME METER. 3 Sheets—Sheet 3. :z^yr<5. Patented May 23, 1893. … S (Z£fty. United States Patent Office. HENRY H. PATTEE, OF MONMOUTH, ILLINOIS. ELECTRIC-CURRENT TIME-METER. SPECIFICATION forming part of Letters Patent No. 498,022, dated May 23, 1893. Application filed September 6, 1890. Serial No. 364,200. (No model.) To all whom it may concern: Be it known that…
Clocks and watches
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