JH

John Hans-Juergen

Overall (All Time): #3,682,251 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5743676 Method and device for keeping outfall drainage in service during sewerage construction Guenter Geschke, Gerhard Rade 1998-04-28