Pocket Watch Database
Patent Archive
#1313440
Patent Information
Time Switch Electric Circuits
Lester Clark Whitaker
August 19, 1919
Patent #1313440
| Patent Number: | 1313440 |
| Description: | Time Switch Electric Circuits |
| Inventor(s): | Lester Clark Whitaker |
| Patent Date: | Aug 19, 1919 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
