Patented December 22, 1874
If an object in your hands says PAT. DECEMBER 22, 1874, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 158,111 | IMPROVEMENT IN PADLOCKS, &c. | Daniel K. Miller | Philadelphia, Pennsylvania |
Three centuries of keeping things shut
If an object in your hands says PAT. DECEMBER 22, 1874, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 158,111 | IMPROVEMENT IN PADLOCKS, &c. | Daniel K. Miller | Philadelphia, Pennsylvania |