Pocket Watch Database
Patent Archive
#722292
Patent Information
Timer Circuit
Henry C. Froelich
March 10, 1903
Patent #722292
| Patent Number: | 722292 |
| Description: | Timer Circuit |
| Inventor(s): | Henry C. Froelich |
| Assignee: | Baird Mfg Co |
| Patent Date: | Mar 10, 1903 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
