Pocket Watch Database
Patent Archive
#140231
Patent Information
Watch Hair Spring Stud
John P. Adams
June 24, 1873
Patent #140231
| Patent Number: | 140231 |
| Description: | Watch Hair Spring Stud |
| Inventor(s): | John P. Adams |
| Patent Date: | Jun 24, 1873 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
