Pocket Watch Database
Patent Archive
#600000
Patent Information
Watch Safety
Benjamin Greenberg
March 1, 1898
Patent #600000
| Patent Number: | 600000 |
| Description: | Watch Safety |
| Inventor(s): | Benjamin Greenberg |
| Patent Date: | Mar 1, 1898 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
