Pocket Watch Database
Patent Archive
#286685
Patent Information
Watch Escape Worm Or Screw
Robert J. Clay
October 16, 1883
Patent #286685
| Patent Number: | 286685 |
| Description: | Watch Escape Worm Or Screw |
| Inventor(s): | Robert J. Clay |
| Patent Date: | Oct 16, 1883 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
