Pocket Watch Database
Patent Archive
#2224268
Patent Information
Clock Electric Operate Sidereal
Donald George R. Mc
December 10, 1940
Patent #2224268
| Patent Number: | 2224268 |
| Description: | Clock Electric Operate Sidereal |
| Inventor(s): | Donald George R. Mc |
| Patent Date: | Dec 10, 1940 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
