Pocket Watch Database
Patent Archive
#1418975
Patent Information
Tool Watch Crystal Grind
William Mallow Sandefur
June 6, 1922
Patent #1418975
| Patent Number: | 1418975 |
| Description: | Tool Watch Crystal Grind |
| Inventor(s): | William Mallow Sandefur |
| Patent Date: | Jun 6, 1922 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
