Pocket Watch Database
Patent Archive
#495820
Patent Information
Watch Safety
Herbert Joel Martin
April 18, 1893
Patent #495820
| Patent Number: | 495820 |
| Description: | Watch Safety |
| Inventor(s): | Herbert Joel Martin |
| Patent Date: | Apr 18, 1893 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
