Pocket Watch Database
Patent Archive
#112657
Patent Information
Watch Attach Hair Spring
Constant W. Wadsworth
Carl Gullberg
March 14, 1871
Patent #112657
| Patent Number: | 112657 |
| Description: | Watch Attach Hair Spring |
| Inventor(s): |
Constant W. Wadsworth Carl Gullberg |
| Patent Date: | Mar 14, 1871 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
