Pocket Watch Database
Patent Archive
#2920439
Patent Information
Clock Electric Driven Particulry Battery
Walter Rich
January 12, 1960
Patent #2920439
| Patent Number: | 2920439 |
| Description: | Clock Electric Driven Particulry Battery |
| Inventor(s): | Walter Rich |
| Patent Date: | Jan 12, 1960 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
