Pocket Watch Database
Patent Archive
#1306140
Patent Information
Watch Case Temperature Control
Charles L. Depollier
June 10, 1919
Patent #1306140
| Manufacturer: | Dubois Watch Case Co. |
| Patent Number: | 1306140 |
| Description: | Watch Case Temperature Control |
| Inventor(s): | Charles L. Depollier |
| Patent Date: | Jun 10, 1919 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
