Patent Archive
#639578
Patent Information
Clock Or Watch Regulator For Hair Spring
Johanson Olof
December 19, 1899
Patent #639578
| Manufacturer: | |
| Patent Number: | 639578 |
| Category: | Regulators |
| Description: | Clock Or Watch Regulator For Hair Spring |
| Inventor(s): | Johanson Olof |
| Patent Date: | Dec 19, 1899 |
| Registration Type: | Patent |
| External Research: | https://www.google.com/patents... |
| Patent Document: |
