Pocket Watch Database
Columbia Watch Co.
Pocket Watch Patents
The following gallery contains patents that were issued or assigned to Columbia Watch Co. or individuals known to be associated with the company at the time. Not all designs were fully implemented into production.
Escape Wheel Duplex
| Patent Number: | 515862 |
| Description: | Escape Wheel Duplex |
| Inventor: | Herman Joseph Eisen |
| Assignee: | Locke Edward A |
| Patent Date: | Mar 6, 1894 |
| Registration Type: | Patent |