Pocket Watch Database
Patent Archive
#2171370
Patent Information
Timer Electric Circuit
Adrian Martin
August 29, 1939
Patent #2171370
| Patent Number: | 2171370 |
| Description: | Timer Electric Circuit |
| Inventor(s): | Adrian Martin |
| Patent Date: | Aug 29, 1939 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
