Pocket Watch Database
Patent Archive
#1217310
Patent Information
Clock Electric Self Wind
Ernest A. Hummel
February 27, 1917
Patent #1217310
| Patent Number: | 1217310 |
| Description: | Clock Electric Self Wind |
| Inventor(s): | Ernest A. Hummel |
| Assignee: | Haman Albert L |
| Patent Date: | Feb 27, 1917 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
