Pocket Watch Database
Patent Archive
#903125
Patent Information
Friction Held Alarm Switch
Frank R. Alford
November 3, 1908
Patent #903125
| Patent Number: | 903125 |
| Description: | Friction Held Alarm Switch |
| Inventor(s): | Frank R. Alford |
| Assignee: | Gilbert Clock Co William L |
| Patent Date: | Nov 3, 1908 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
