HP

Helen T. Praria

📍 Wayland, MA: #15 of 38 inventorsTop 40%
🗺 Massachusetts: #1,083 of 4,501 inventorsTop 25%
Overall (1997): #52,143 of 185,788Top 30%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5593212 Footstool extension providing leg support Guy B. Praria 1997-01-14