Pocket Watch Database
Patent Archive
#3315461
Patent Information
Watch Main Spring Indicator
Ralph G. Eshleman
John O. James
April 25, 1967
Patent #3315461
| Manufacturer: | Hamilton |
| Patent Number: | 3315461 |
| Description: | Watch Main Spring Indicator |
| Inventor(s): |
Ralph G. Eshleman John O. James |
| Assignee: | Hamilton Watch Co |
| Patent Date: | Apr 25, 1967 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
