Pocket Watch Database
Patent Archive
#345231
Patent Information
Watch Wind Mech
Heinrich Friedrich Hambruch
July 6, 1886
Patent #345231
| Patent Number: | 345231 |
| Description: | Watch Wind Mech |
| Inventor(s): | Heinrich Friedrich Hambruch |
| Patent Date: | Jul 6, 1886 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
