Pocket Watch Database
Patent Archive
#402380
Patent Information
Machine Watch Case Engraver
Ami Zuahlen
April 30, 1889
Patent #402380
| Patent Number: | 402380 |
| Description: | Machine Watch Case Engraver |
| Inventor(s): | Ami Zuahlen |
| Patent Date: | Apr 30, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
