SO

Stefan Orsen

KE Keuffel & Esser: 2 patents #4 of 17Top 25%
Overall (All Time): #2,365,680 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4318617 DC Shift error correction for electro-optical measuring system 1982-03-09
4205385 Electronic surveying system Kent E. Erickson, Gerhardt C. Rowe 1980-05-27