Pocket Watch Database
Patent Archive
#452956
Patent Information
Clock Synch Electric
Henry S. Prentiss
May 26, 1891
Patent #452956
| Patent Number: | 452956 |
| Description: | Clock Synch Electric |
| Inventor(s): | Henry S. Prentiss |
| Patent Date: | May 26, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
