Pocket Watch Database
Patent Archive
#110657
Patent Information
Tool Caliper
William P. Hopkins
January 3, 1871
Patent #110657
| Patent Number: | 110657 |
| Description: | Tool Caliper |
| Inventor(s): | William P. Hopkins |
| Patent Date: | Jan 3, 1871 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
