Pocket Watch Database
Patent Archive
#387974
Patent Information
Clock Synch Electric
Charles John Hexamer
August 14, 1888
Patent #387974
| Patent Number: | 387974 |
| Description: | Clock Synch Electric |
| Inventor(s): | Charles John Hexamer |
| Assignee: | Philadelphia Time Telegraph Co |
| Patent Date: | Aug 14, 1888 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
