Pocket Watch Database
Patent Archive
#870852
Patent Information
Speedometer
Ralph Shipman
November 12, 1907
Patent #870852
| Patent Number: | 870852 |
| Description: | Speedometer |
| Inventor(s): | Ralph Shipman |
| Patent Date: | Nov 12, 1907 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
