CH

Calvin J. Hartman

📍 Clute, TX: #34 of 61 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #4,106,981 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4190365 Optical testing of surface flatness — 1980-02-26