Pocket Watch Database
Patent Archive
#1313291
Patent Information
Watch Compensate Balance Spring Chronometer
Charles Edouard Guillaume
August 19, 1919
Patent #1313291
| Manufacturer: | Hamilton |
| Patent Number: | 1313291 |
| Description: | Watch Compensate Balance Spring Chronometer |
| Inventor(s): | Charles Edouard Guillaume |
| Patent Date: | Aug 19, 1919 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
