Pocket Watch Database
Patent Archive
#480367
Patent Information
Indicator Time & Longitude
William W. Hallett
August 9, 1892
Patent #480367
| Patent Number: | 480367 |
| Description: | Indicator Time & Longitude |
| Inventor(s): | William W. Hallett |
| Patent Date: | Aug 9, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
