DK

Donald W. Keefer

PL Plastibec: 1 patents #2 of 4Top 50%
📍 Pasadena, MD: #3 of 12 inventorsTop 25%
🗺 Maryland: #225 of 1,164 inventorsTop 20%
Overall (1989): #119,475 of 140,708Top 85%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4879775 Reinforced rail assembly for waterbeds — 1989-11-14