Pocket Watch Database
Patent Archive
#733369
Patent Information
Clock Current Switch
Ira S. Callender
Edwin F. Callender
July 14, 1903
Patent #733369
| Patent Number: | 733369 |
| Description: | Clock Current Switch |
| Inventor(s): |
Ira S. Callender Edwin F. Callender |
| Patent Date: | Jul 14, 1903 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
