Pocket Watch Database
Patent Archive
#448999
Patent Information
Clock Secondary Electric
William S. Scales
March 24, 1891
Patent #448999
| Patent Number: | 448999 |
| Description: | Clock Secondary Electric |
| Inventor(s): | William S. Scales |
| Assignee: | Humphrey John B |
| Patent Date: | Mar 24, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
