Pocket Watch Database
Patent Archive
#2856751
Patent Information
Alarm Automatic Crescendo
Ralph H. Preiser
October 21, 1958
Patent #2856751
| Patent Number: | 2856751 |
| Description: | Alarm Automatic Crescendo |
| Inventor(s): | Ralph H. Preiser |
| Assignee: | General Time Corp |
| Patent Date: | Oct 21, 1958 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
