U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 727
ivr … AtTCT ST 1 /V MENTOR 15 \j ^Jt^z^ce^ ^^z^^C-z ATTOftNEV ited States Patent Office, CHARLES RUPRECIIT, OF CLEVELAND, OHIO.WORKMANS TIME-RECORDER. SPECIFICATION forming part of Letters Patent No. 496,005, dated April 25, 1893. Application filed June 6, 1892. Serial No, 435,593, (No model.) To all…
Clocks and watches
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