Pocket Watch Database
Patent Archive
#102753
Patent Information
Watch Key Adjust
John S. Birch
May 10, 1870
Patent #102753
| Patent Number: | 102753 |
| Description: | Watch Key Adjust |
| Inventor(s): | John S. Birch |
| Patent Date: | May 10, 1870 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
