Pocket Watch Database
Patent Archive
#777974
Patent Information
Clock Electric
David Perret
December 20, 1904
Patent #777974
| Patent Number: | 777974 |
| Description: | Clock Electric |
| Inventor(s): | David Perret |
| Patent Date: | Dec 20, 1904 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
