Pocket Watch Database
Patent Archive
#1584528
Patent Information
Watch Thermostatic Compensator Chronometer
James G. Grainger
May 11, 1926
Patent #1584528
| Patent Number: | 1584528 |
| Description: | Watch Thermostatic Compensator Chronometer |
| Inventor(s): | James G. Grainger |
| Assignee: | Knox George A |
| Patent Date: | May 11, 1926 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
