Pocket Watch Database
Patent Archive
#81910
Patent Information
Chronometer Escape
William C. Kellum
September 8, 1868
Patent #81910
| Patent Number: | 81910 |
| Description: | Chronometer Escape |
| Inventor(s): | William C. Kellum |
| Patent Date: | Sep 8, 1868 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
