RR

Roy E. Riihimaki

HC Hu-Friedy Mfg. Co.: 1 patents #1 of 3Top 35%
📍 Libertyville, IL: #14 of 47 inventorsTop 30%
🗺 Illinois: #802 of 3,813 inventorsTop 25%
Overall (1989): #61,433 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4854475 Instrument cassette Richard Joseph D'Amico, Karl Zoll 1989-08-08