Hydraulic Research 1955 | University of Illinois Archives
Streamlined drain inlet designed by Professor John C. Gillou of the College of Engineering. This precast inlet is more efficent than the present type and will save $1,000 per mile of city streets.
Found in RS 39/2/20, Box 117, Folder "ENG 5-2 Faculty."
Original size 3.5" x 5"