Pocket Watch Database
Patent Archive
#75196
Patent Information
Indicator Machine Use
George Richardson
March 3, 1868
Patent #75196
| Patent Number: | 75196 |
| Description: | Indicator Machine Use |
| Inventor(s): | George Richardson |
| Patent Date: | Mar 3, 1868 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
