KF

Karl-Heinz Frank

RA Roto Frank Ag: 2 patents #6 of 22Top 30%
Overall (All Time): #2,282,370 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5568702 Vent and tilt roof window Johann Schneider, Volker Wohrn 1996-10-29
5568703 Roof window Johann Schneider, Volker Wohrn 1996-10-29