DC

David F. Coleman

TT The United States Of America As Represented By The Secretary Of Transportation: 1 patents #7 of 47Top 15%
📍 West Medford, MA: #5 of 6 inventorsTop 85%
🗺 Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,096,554 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4288926 Longitudinal rail profilometer Lennart E. Long, Roger K. Steele, Ralph A. Gustafson 1981-09-15