Pocket Watch Database
Patent Archive
#481793
Patent Information
Timepiece Calendar Attach
Joseph J. Hamill
Paul J. Johnson
August 30, 1892
Patent #481793
| Patent Number: | 481793 |
| Description: | Timepiece Calendar Attach |
| Inventor(s): |
Joseph J. Hamill Paul J. Johnson |
| Patent Date: | Aug 30, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
