Pocket Watch Database
Patent Archive
#1054580
Patent Information
Clock Alarm Signal
A. Mangani
February 25, 1913
Patent #1054580
| Patent Number: | 1054580 |
| Description: | Clock Alarm Signal |
| Inventor(s): | A. Mangani |
| Patent Date: | Feb 25, 1913 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
