DB

David E. H. Balmford

WL Westland Helicopters Limited: 1 patents #10 of 41Top 25%
📍 Sherborne, GB: #16 of 30 inventorsTop 55%
Overall (All Time): #3,866,369 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5174523 Compound helicopter with engine shaft power output control — 1992-12-29