| In the early 1960s, State departments of transportation began using aluminum trichord overhead structures to support signs along our Nation's highways. |
| This is the predominant trichord of most sets and functions as a signature motive. |
| Each trichord was erected in 90-ft lengths assembly-line fashion, one at a time, onto three falsework towers shored off the mechanical level framing. |
| SpeedAlerts, a new subscription service from Trichord, Inc. |
| The second feature missing in Alegant's account is the minor triad for P forms or major triad for I forms that occurs as the final trichord in Dallapiccola's row. |
| Trichord processes the data and delivers it through a variety of products used by media outlets, commercial businesses, and public sector agencies. |
