Pocket Watch Database
Patent Archive
#841226
Patent Information
Time Electric Circuit
James M. Chappel
January 15, 1907
Patent #841226
| Patent Number: | 841226 |
| Description: | Time Electric Circuit |
| Inventor(s): | James M. Chappel |
| Patent Date: | Jan 15, 1907 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
