Pocket Watch Database
Patent Archive
#460963
Patent Information
Clock & Thermoscope System Electric
Henry Jansen Haight
October 13, 1891
Patent #460963
| Patent Number: | 460963 |
| Description: | Clock & Thermoscope System Electric |
| Inventor(s): | Henry Jansen Haight |
| Patent Date: | Oct 13, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
