HJ

Hans-Jurgen Janisch

MA Mannesmann Ag: 1 patents #514 of 1,341Top 40%
📍 Beckum, DE: #59 of 123 inventorsTop 50%
Overall (All Time): #3,830,287 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5234195 Device for closing off large pipelines — 1993-08-10