Pocket Watch Database
Patent Archive
#480430
Patent Information
Watch Chain Attach
John Caspar Koch
August 9, 1892
Patent #480430
| Patent Number: | 480430 |
| Description: | Watch Chain Attach |
| Inventor(s): | John Caspar Koch |
| Patent Date: | Aug 9, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
