DS

Donald E. Sprothbery

HA Hughes Aircraft: 1 patents #1,260 of 2,963Top 45%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,929,520 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4836649 Optical layout for a three light valve full-color projector employing a dual relay lens system and a single projection lens Arno G. Ledebuhr 1989-06-06