Displaying results 1 of 4 - 4
| Date | Innovation | City | State | Country | Society |
|---|---|---|---|---|---|
| 1943 | "Old Red" Cotton Picker | Washington | DC | USA | ASABE |
| 1793 | U.S. Capitol | Washington | DC | USA | ASCE |
| 1885 | Washington Monument | Washington | DC | USA | ASCE |
| 1958 | RL-10 Rocket Engine | Washington | DC | USA | ASME |

