Pocket Watch Database
Patent Archive
#1124543
Patent Information
Time Device
Ralph R. Spears
January 12, 1915
Patent #1124543
| Patent Number: | 1124543 |
| Description: | Time Device |
| Inventor(s): | Ralph R. Spears |
| Patent Date: | Jan 12, 1915 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
