Pocket Watch Database
Patent Archive
#515189
Patent Information
Electric Time Alarm
John C. Betts
February 20, 1894
Patent #515189
| Patent Number: | 515189 |
| Description: | Electric Time Alarm |
| Inventor(s): | John C. Betts |
| Patent Date: | Feb 20, 1894 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
