Pocket Watch Database
Patent Archive
#502381
Patent Information
Clock Synch Electric
Henry S. Prentiss
August 1, 1893
Patent #502381
| Patent Number: | 502381 |
| Description: | Clock Synch Electric |
| Inventor(s): | Henry S. Prentiss |
| Patent Date: | Aug 1, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
