Pocket Watch Database
Patent Archive
#166990
Patent Information
Watch Collet For Balance Spring
Augustine Jewett
August 24, 1875
Patent #166990
| Patent Number: | 166990 |
| Description: | Watch Collet For Balance Spring |
| Inventor(s): | Augustine Jewett |
| Patent Date: | Aug 24, 1875 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
