Pocket Watch Database
Patent Archive
#486933
Patent Information
Cannon Pinion
John B. Jobson
November 29, 1892
Patent #486933
| Patent Number: | 486933 |
| Description: | Cannon Pinion |
| Inventor(s): | John B. Jobson |
| Patent Date: | Nov 29, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
