Pocket Watch Database
Patent Archive
#858301
Patent Information
Timer Electric Circuit
Walter N. Martin
Andrew J. Thomas
June 25, 1907
Patent #858301
| Patent Number: | 858301 |
| Description: | Timer Electric Circuit |
| Inventor(s): |
Walter N. Martin Andrew J. Thomas |
| Patent Date: | Jun 25, 1907 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
