JH

John H. Harker

IT International Telephone And Telegraph: 1 patents #182 of 507Top 40%
📍 Riverwoods, IL: #43 of 75 inventorsTop 60%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #3,990,244 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4569638 Pump with resiliently mounted impeller Thomas Boesen 1986-02-11