RC

Ralph Coupland

CC Clayton Dewandre Co.: 1 patents #3 of 11Top 30%
Overall (All Time): #2,309,287 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5113652 Diesel engine exhaust system Robert G. Baines, Colm Keegan 1992-05-19
4821518 Clutch booster with overcenter means Michael P. Keegan 1989-04-18