WH

Wilfried Hamm

Overall (All Time): #1,289,051 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5667199 Railing made of prefabricated standard components — 1997-09-16
4512572 Multi-purpose sports-kit — 1985-04-23
4438608 Stairtread for spiral staircase — 1984-03-27
4289303 Hand-rail element for staircase — 1981-09-15