Pocket Watch Database
Patent Archive
#834708
Patent Information
Clock Secondary Electric
Henri Campiche
October 30, 1906
Patent #834708
| Patent Number: | 834708 |
| Description: | Clock Secondary Electric |
| Inventor(s): | Henri Campiche |
| Patent Date: | Oct 30, 1906 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
