Pocket Watch Database
Patent Archive
#464870
Patent Information
Tool Ruby Pin Set
Frank Heller
December 8, 1891
Patent #464870
| Patent Number: | 464870 |
| Description: | Tool Ruby Pin Set |
| Inventor(s): | Frank Heller |
| Patent Date: | Dec 8, 1891 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
