Pocket Watch Database
Patent Archive
#405004
Patent Information
Watch Key
Martin Bock
June 11, 1889
Patent #405004
| Patent Number: | 405004 |
| Description: | Watch Key |
| Inventor(s): | Martin Bock |
| Patent Date: | Jun 11, 1889 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
