Pocket Watch Database
Patent Archive
#2554402
Patent Information
Watch Control Alarm
Robert Ditisheim
May 22, 1951
Patent #2554402
| Patent Number: | 2554402 |
| Description: | Watch Control Alarm |
| Inventor(s): | Robert Ditisheim |
| Assignee: | Ditisheim & Cie |
| Patent Date: | May 22, 1951 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
