Pocket Watch Database
Patent Archive
#946792
Patent Information
Timer Electric Circuit
James M. Chappel
January 18, 1910
Patent #946792
| Patent Number: | 946792 |
| Description: | Timer Electric Circuit |
| Inventor(s): | James M. Chappel |
| Patent Date: | Jan 18, 1910 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
