U.S. patents covering time keeping mechanisms (1892)
United States. Patent Office · [Washington : United States Patent Office] · leaf 595
stopped at the expiration of the in-terval of time, and in the latter instance, iscommenced at the conclusion of the intervalof time and stopped when the number of vi- brations has been made, substantially as andfor the purpose shown and described. In testimony that I claim the foregoing Ihave… … THE NORfllS PETCI^ CO PHOTO-UTHO.. United States Patent Office, GEORGE E. HUNTER, OF ELGIN, ASSIGNOR TO THE ELGIN NATIONAL WATCH COMPANY, OF CHICAGO, ILLINOIS. MANUFACTURE OF TIMEPIECE-BALANCES. SPECIFICATION forming part of Letters Patent No. 490,204, dated January 17, 1893. Application filed…
Clocks and watches
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