Pocket Watch Database
Patent Archive
#772923
Patent Information
Clock Circuit Breaker
Edwin F. Callender
October 25, 1904
Patent #772923
| Patent Number: | 772923 |
| Description: | Clock Circuit Breaker |
| Inventor(s): | Edwin F. Callender |
| Patent Date: | Oct 25, 1904 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
