FC

Frank L. Crist

📍 Grand Ledge, MI: #2 of 5 inventorsTop 40%
🗺 Michigan: #1,023 of 4,492 inventorsTop 25%
Overall (1997): #152,872 of 185,788Top 85%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D384155 Combined helmet, head and cervical spine immobilizer — 1997-09-23