Pocket Watch Database
Patent Archive
#1388512
Patent Information
Clock Secondary Electric
Thaddeus Stephens Casner
August 23, 1921
Patent #1388512
| Patent Number: | 1388512 |
| Description: | Clock Secondary Electric |
| Inventor(s): | Thaddeus Stephens Casner |
| Patent Date: | Aug 23, 1921 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
