Pocket Watch Database
Patent Archive
#112203
Patent Information
Tool Poise & Caliper
Francis E. Allen
February 28, 1871
Patent #112203
| Patent Number: | 112203 |
| Description: | Tool Poise & Caliper |
| Inventor(s): | Francis E. Allen |
| Patent Date: | Feb 28, 1871 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
