HE

Hans H. Engelhardt

SI Sig Schweizerische Industrie-Gesellschaft: 2 patents #18 of 92Top 20%
Overall (All Time): #2,281,957 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5562042 Elastic membrane Gerald Luck, Thomas Schlusemann 1996-10-08
4252065 Passageway system for vehicles Hans Bickel 1981-02-24