Pocket Watch Database
Patent Archive
#288087
Patent Information
Reversible Center Safety Pinion For Timekeeper
Charles E. Mason
November 6, 1883
Patent #288087
| Patent Number: | 288087 |
| Category: | Safety Pinion |
| Description: | Reversible Center Safety Pinion For Timekeeper |
| Inventor(s): | Charles E. Mason |
| Patent Date: | Nov 6, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
