Pocket Watch Database
Patent Archive
#1021045
Patent Information
Clock Secondary Electric
Ernest A. Hummel
March 26, 1912
Patent #1021045
| Patent Number: | 1021045 |
| Description: | Clock Secondary Electric |
| Inventor(s): | Ernest A. Hummel |
| Assignee: | Haman Albert L |
| Patent Date: | Mar 26, 1912 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
