Pocket Watch Database
Patent Archive
#515862
Patent Information
Escape Wheel Duplex
Herman Joseph Eisen
March 6, 1894
Patent #515862
| Manufacturer: | Columbia Watch Co. |
| Patent Number: | 515862 |
| Description: | Escape Wheel Duplex |
| Inventor(s): | Herman Joseph Eisen |
| Assignee: | Locke Edward A |
| Patent Date: | Mar 6, 1894 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
