Pocket Watch Database
Patent Archive
#617852
Patent Information
Escape Balance
Arthur R. Colburn
January 17, 1899
Patent #617852
| Patent Number: | 617852 |
| Description: | Escape Balance |
| Inventor(s): | Arthur R. Colburn |
| Patent Date: | Jan 17, 1899 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
