Pocket Watch Database
Patent Archive
#648296
Patent Information
Clock Electric
Peter M. Ravenskilde
April 24, 1900
Patent #648296
| Patent Number: | 648296 |
| Description: | Clock Electric |
| Inventor(s): | Peter M. Ravenskilde |
| Patent Date: | Apr 24, 1900 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
