Pocket Watch Database
Patent Archive
#163694
Patent Information
Watch Main Spring
Asa L. Burbank
Charles W. Rice
May 25, 1875
Patent #163694
| Patent Number: | 163694 |
| Description: | Watch Main Spring |
| Inventor(s): |
Asa L. Burbank Charles W. Rice |
| Patent Date: | May 25, 1875 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
