Pocket Watch Database
Patent Archive
#284578
Patent Information
Clock Primary Electric
D. Fred Sweet
September 4, 1883
Patent #284578
| Patent Number: | 284578 |
| Description: | Clock Primary Electric |
| Inventor(s): | D. Fred Sweet |
| Patent Date: | Sep 4, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
