Pocket Watch Database
Patent Archive
#1851781
Patent Information
Electric Time Drift Recorder
Earl E. Stevens
March 29, 1932
Patent #1851781
| Patent Number: | 1851781 |
| Description: | Electric Time Drift Recorder |
| Inventor(s): | Earl E. Stevens |
| Assignee: | Associated Engineers Co |
| Patent Date: | Mar 29, 1932 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
