Pocket Watch Database
Patent Archive
#1483768
Patent Information
Watch Silent Alarm Wrist
Ralph Bickerton
February 12, 1924
Patent #1483768
| Patent Number: | 1483768 |
| Description: | Watch Silent Alarm Wrist |
| Inventor(s): | Ralph Bickerton |
| Patent Date: | Feb 12, 1924 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
