GB

Gerhard Birk

PG Putzmeister-Werk Maschinenfabrik Gmbh: 2 patents #7 of 23Top 35%
Overall (All Time): #2,267,095 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5628081 Brush head for large manipulators Martin Wanner, Dieter Maier 1997-05-13
5592710 Brush head for cleaning surfaces Martin Wanner, Dieter Maier 1997-01-14