Pocket Watch Database
Patent Archive
#2777279
Patent Information
Retainer Ring For Balance Wheel Staff
Fred Koehler
January 15, 1957
Patent #2777279
| Manufacturer: | Hamilton |
| Patent Number: | 2777279 |
| Description: | Retainer Ring For Balance Wheel Staff |
| Inventor(s): | Fred Koehler |
| Assignee: | Hamilton Watch Co |
| Patent Date: | Jan 15, 1957 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
