RS

Robert T. Sefton

📍 Birmingham, MI: #7 of 55 inventorsTop 15%
🗺 Michigan: #1,023 of 4,492 inventorsTop 25%
Overall (1997): #83,521 of 185,788Top 45%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5647599 In-line roller skate braking mechanism Patrick Visger 1997-07-15