BH

Barrie Holst

Overall (All Time): #1,246,950 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7506463 Universal electronic gaming machine topper sign 2009-03-24
7431476 Cold cathode fluorescent lamp 2008-10-07
4851836 Audio-tactile pedestrian push button signalling system Barry Wilkinson 1989-07-25
4785385 Traffic light lens 1988-11-15