Pocket Watch Database
Patent Archive
#2145082
Patent Information
Timer Electric Circuit
John H. Grayson
January 24, 1939
Patent #2145082
| Patent Number: | 2145082 |
| Description: | Timer Electric Circuit |
| Inventor(s): | John H. Grayson |
| Patent Date: | Jan 24, 1939 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
