CZ

Christian Zahn

Overall (All Time): #1,299,213 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5068922 Military safety helmet — 1991-12-03
4987609 Military safety helmet — 1991-01-29
4564959 Crash helmet — 1986-01-21
4527290 Internal structure for a protective helmet — 1985-07-09