Pocket Watch Database
Patent Archive
#531435
Patent Information
Tool Staff & Pinion Size
Henry J. Cogswell
December 25, 1894
Patent #531435
| Patent Number: | 531435 |
| Description: | Tool Staff & Pinion Size |
| Inventor(s): | Henry J. Cogswell |
| Patent Date: | Dec 25, 1894 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
