Pocket Watch Database
Patent Archive
#489423
Patent Information
Clock Electric Circuit Control
Jacob P. Tirrell
January 3, 1893
Patent #489423
| Patent Number: | 489423 |
| Description: | Clock Electric Circuit Control |
| Inventor(s): | Jacob P. Tirrell |
| Assignee: | Edgerton Herbert O |
| Patent Date: | Jan 3, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
