Pocket Watch Database
Patent Archive
#486603
Patent Information
Lock Time
Edwin Sanford Phelps
November 22, 1892
Patent #486603
| Patent Number: | 486603 |
| Description: | Lock Time |
| Inventor(s): | Edwin Sanford Phelps |
| Patent Date: | Nov 22, 1892 |
| Registration Type: | Patent |
| External Research: | https://www.google.c… |
| Patent Document: |
