Patented December 14, 1915
| Patent | Title | Inventor |
|---|---|---|
| US 1,164,483 | RAT-TRAP | Willard Duplantis and Curtis Duplantis |
And The World Did Not Beat A Path To His Door
4,400 attempts at a solved problem
| Patent | Title | Inventor |
|---|---|---|
| US 1,164,483 | RAT-TRAP | Willard Duplantis and Curtis Duplantis |