Pocket Watch Database
Patent Archive
#491339
Patent Information
Clock Electric
John H. Dyson
February 7, 1893
Patent #491339
| Patent Number: | 491339 |
| Description: | Clock Electric |
| Inventor(s): | John H. Dyson |
| Patent Date: | Feb 7, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
