Pocket Watch Database
Patent Archive
#727938
Patent Information
Watch Main Spring Box
Peter C. Hall
May 12, 1903
Patent #727938
| Patent Number: | 727938 |
| Description: | Watch Main Spring Box |
| Inventor(s): | Peter C. Hall |
| Patent Date: | May 12, 1903 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
