Pocket Watch Database
Patent Archive
#496135
Patent Information
Clock Synch Electric
Henry S. Prentiss
April 25, 1893
Patent #496135
Patent Number: | 496135 |
Description: | Clock Synch Electric |
Inventor(s): | Henry S. Prentiss |
Patent Date: | Apr 25, 1893 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |