Pocket Watch Database
Patent Archive
#2554809
Patent Information
Clock Dbl Signal Alarm
Edgar Bourquin
May 29, 1951
Patent #2554809
| Patent Number: | 2554809 |
| Description: | Clock Dbl Signal Alarm |
| Inventor(s): | Edgar Bourquin |
| Patent Date: | May 29, 1951 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
