DM

David O. Mann

LA La-Man: 1 patents #2 of 3Top 70%
📍 Marshall, MI: #1 of 14 inventorsTop 8%
🗺 Michigan: #263 of 3,452 inventorsTop 8%
Overall (1989): #29,465 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
RE32989 Air line vapor trap 1989-07-18
4801313 Gas purification apparatus 1989-01-31