GD

Gerald L. Donnellan

HL Holset Engineering Company, Limited: 1 patents #24 of 53Top 50%
📍 Columbus, IN: #880 of 1,378 inventorsTop 65%
🗺 Indiana: #19,404 of 33,936 inventorsTop 60%
Overall (All Time): #4,017,297 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4526004 Exhaust brake valve Pierre Bernard French, David Antcliffe 1985-07-02