Pocket Watch Database
Patent Archive
#404906
Patent Information
Clock Electric Alarm
William E. Hadlock
June 11, 1889
Patent #404906
| Patent Number: | 404906 |
| Description: | Clock Electric Alarm |
| Inventor(s): | William E. Hadlock |
| Patent Date: | Jun 11, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
