LD

Leonard H. Davis

BW Brady Worldwide: 1 patents #83 of 190Top 45%
Overall (All Time): #3,434,590 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7139226 Long term rapid color changing time indicator David J. Haas, Robert Holt 2006-11-21