Pocket Watch Database
Patent Archive
#157155
Patent Information
Watch Barrel
Earl Chapin
November 24, 1874
Patent #157155
| Patent Number: | 157155 |
| Description: | Watch Barrel |
| Inventor(s): | Earl Chapin |
| Patent Date: | Nov 24, 1874 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
