WS

William D. Spencer

📍 Ellicott City, MD: #13 of 52 inventorsTop 25%
🗺 Maryland: #225 of 1,164 inventorsTop 20%
Overall (1989): #43,110 of 140,708Top 35%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4870898 Trash compactor with pivoting platen portion — 1989-10-03