Pocket Watch Database
Patent Archive
#807017
Patent Information
Timer Electric Circuit
Milton T. Campbell
December 12, 1905
Patent #807017
| Patent Number: | 807017 |
| Description: | Timer Electric Circuit |
| Inventor(s): | Milton T. Campbell |
| Assignee: | Ertel John C |
| Patent Date: | Dec 12, 1905 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
