Pocket Watch Database
Patent Archive
#788027
Patent Information
Apparatus For Adjust Hair Spring
Barthe Emerson De
April 25, 1905
Patent #788027
| Patent Number: | 788027 |
| Description: | Apparatus For Adjust Hair Spring |
| Inventor(s): | Barthe Emerson De |
| Patent Date: | Apr 25, 1905 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
