DZ

David E. Ziegler

HP Hartzell Propeller: 1 patents #6 of 12Top 50%
Overall (All Time): #3,877,731 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5020741 Aircraft propeller with improved electrically de-icer leads Arthur J. Bowser 1991-06-04