Pocket Watch Database
Patent Archive
#317312
Patent Information
Clock Alarm & Lamp Regulator
John M. Crawford
May 5, 1885
Patent #317312
| Patent Number: | 317312 |
| Description: | Clock Alarm & Lamp Regulator |
| Inventor(s): | John M. Crawford |
| Patent Date: | May 5, 1885 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
