Pocket Watch Database
Patent Archive
#193391
Patent Information
Clock Alarm
Isaac B. Woodruff
July 24, 1877
Patent #193391
| Patent Number: | 193391 |
| Description: | Clock Alarm |
| Inventor(s): | Isaac B. Woodruff |
| Patent Date: | Jul 24, 1877 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
