Pocket Watch Database
Patent Archive
#458206
Patent Information
Clock Electric Alarm
Louis Winterhalder
August 25, 1891
Patent #458206
| Patent Number: | 458206 |
| Description: | Clock Electric Alarm |
| Inventor(s): | Louis Winterhalder |
| Patent Date: | Aug 25, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
