JD

Jean G. Dufour

JC Johnson Level & Tool Mfg. Co.: 2 patents #1 of 2Top 50%
📍 Russell, CA: #2 of 7 inventorsTop 30%
Overall (1997): #36,412 of 185,788Top 20%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5683055 Quick rewind chalk line reel 1997-11-04
5659967 Line level 1997-08-26