GS

Gerhard Schutzer

GK Gustav F. Gerdts Kg: 2 patents #2 of 5Top 40%
Overall (All Time): #2,365,951 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4321944 Check valve 1982-03-30
4196745 Flap valve 1980-04-08