Pocket Watch Database
Patent Archive
#507959
Patent Information
Clock Electric Alarm
Charles E. Wyman
October 31, 1893
Patent #507959
| Patent Number: | 507959 |
| Description: | Clock Electric Alarm |
| Inventor(s): | Charles E. Wyman |
| Assignee: | Knapp Henry W |
| Patent Date: | Oct 31, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
