Patented April 22, 1879
If an object in your hands says PAT. APRIL 22, 1879, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 214,736 | IMPROVEMENT IN PADLOCKS | Theodor Heinrich Wichert | Lancaster, Pennsylvania |
| US 214,740 | IMPROVEMENT IN PADLOCKS | William P. Wirth and Theodor Heinrich Wichert | Lancaster, Pennsylvania |