Pocket Watch Database
Patent Archive
#211748
Patent Information
Clock Illuminate Alarm
Alfred T. Koopman
January 28, 1879
Patent #211748
| Patent Number: | 211748 |
| Description: | Clock Illuminate Alarm |
| Inventor(s): | Alfred T. Koopman |
| Patent Date: | Jan 28, 1879 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
