EC

Ellwin L. Coulston

KC Kawneer Company: 2 patents #9 of 30Top 30%
📍 Niles, MI: #70 of 188 inventorsTop 40%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #2,361,752 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4377926 Framing member for curtain wall structures S. Eugene Hubbard 1983-03-29
4267673 Heat insulating flashing — 1981-05-19