Pocket Watch Database
Patent Archive
#91650
Patent Information
Watch Key Self Clean
William N. Martin
June 22, 1869
Patent #91650
| Patent Number: | 91650 |
| Description: | Watch Key Self Clean |
| Inventor(s): | William N. Martin |
| Patent Date: | Jun 22, 1869 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
