Pocket Watch Database
Patent Archive
#455629
Patent Information
Tool Hair Spring Stud & Balance
Cornelius Loudon
July 7, 1891
Patent #455629
| Patent Number: | 455629 |
| Description: | Tool Hair Spring Stud & Balance |
| Inventor(s): | Cornelius Loudon |
| Patent Date: | Jul 7, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
