Pocket Watch Database
Patent Archive
#288233
Patent Information
Watch Balance Mech For Time
Edwin Jonas Hall
November 13, 1883
Patent #288233
| Patent Number: | 288233 |
| Description: | Watch Balance Mech For Time |
| Inventor(s): | Edwin Jonas Hall |
| Patent Date: | Nov 13, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
