Pocket Watch Database
Patent Archive
#522029
Patent Information
Electric Time Signal System & Apparatus
Walter A. Purcell
June 26, 1894
Patent #522029
| Patent Number: | 522029 |
| Description: | Electric Time Signal System & Apparatus |
| Inventor(s): | Walter A. Purcell |
| Patent Date: | Jun 26, 1894 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
