Pocket Watch Database
Patent Archive
#2116247
Patent Information
Clock Alarm
Alan James Macdonald
May 3, 1938
Patent #2116247
| Patent Number: | 2116247 |
| Description: | Clock Alarm |
| Inventor(s): | Alan James Macdonald |
| Patent Date: | May 3, 1938 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
