DC

Denis Crawford

AS Astro System: 1 patents #4 of 10Top 40%
Overall (All Time): #2,152,179 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7462792 Power transmission safety system Michael Hellmers, David Hellmers 2008-12-09
6270228 Studio lighting system Bradley D. Axen 2001-08-07