Pocket Watch Database
Patent Archive
#1311424
Patent Information
Clock Alarm
Benjamin H. M. Spargo
July 29, 1919
Patent #1311424
| Patent Number: | 1311424 |
| Description: | Clock Alarm |
| Inventor(s): | Benjamin H. M. Spargo |
| Patent Date: | Jul 29, 1919 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
