OH

Olin L. Helms

📍 Concord, NC: #201 of 366 inventorsTop 55%
🗺 North Carolina: #26,533 of 45,564 inventorsTop 60%
Overall (All Time): #4,050,091 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4378236 Method and apparatus for recovering heat and smoke from an airstream — 1983-03-29