Pocket Watch Database
Patent Archive
#1937894
Patent Information
Time Service Synch System
George W. Janson
December 5, 1933
Patent #1937894
Patent Number: | 1937894 |
Description: | Time Service Synch System |
Inventor(s): | George W. Janson |
Assignee: | Western Union Telegraph Co |
Patent Date: | Dec 5, 1933 |
Registration Type: | Patent |
External Research: | https://www.google.c… |
Patent Document: |