Pocket Watch Database
Patent Archive
#602706
Patent Information
Circuit Switch
Franklin L. Mackey
April 19, 1898
Patent #602706
| Patent Number: | 602706 |
| Description: | Circuit Switch |
| Inventor(s): | Franklin L. Mackey |
| Patent Date: | Apr 19, 1898 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
