Pocket Watch Database
Patent Archive
#421530
Patent Information
Clock Alarm Electric
George H. Straight
February 18, 1890
Patent #421530
| Patent Number: | 421530 |
| Description: | Clock Alarm Electric |
| Inventor(s): | George H. Straight |
| Patent Date: | Feb 18, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
