Pocket Watch Database
Patent Archive
#138187
Patent Information
Watch Pinion Reverse
Ferdinand Pickert
April 22, 1873
Patent #138187
| Patent Number: | 138187 |
| Category: | Safety Pinion |
| Description: | Watch Pinion Reverse |
| Inventor(s): | Ferdinand Pickert |
| Patent Date: | Apr 22, 1873 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
