Pocket Watch Database
Patent Archive
#508215
Patent Information
Electric Time Signal System
James H. Gerry
November 7, 1893
Patent #508215
| Patent Number: | 508215 |
| Description: | Electric Time Signal System |
| Inventor(s): | James H. Gerry |
| Patent Date: | Nov 7, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
