JK

John Kreidich

TH The Hedman: 1 patents #6 of 16Top 40%
📍 Arlington Heights, IL: #823 of 1,285 inventorsTop 65%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,103,028 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4307970 Key extension for shorthand typewriting machine Carroll B. McGaughey, Jr. 1981-12-29