Pocket Watch Database
Patent Archive
#437965
Patent Information
Watch Key
Martin Bock
October 7, 1890
Patent #437965
| Patent Number: | 437965 |
| Description: | Watch Key |
| Inventor(s): | Martin Bock |
| Patent Date: | Oct 7, 1890 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
