Pocket Watch Database
Patent Archive
#722290
Patent Information
Clock Key Ratchet
Otto C. Eggers
March 10, 1903
Patent #722290
| Patent Number: | 722290 |
| Description: | Clock Key Ratchet |
| Inventor(s): | Otto C. Eggers |
| Patent Date: | Mar 10, 1903 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
