WB

Walter Bierent

IT Itt: 1 patents #194 of 461Top 45%
Overall (All Time): #4,002,789 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4614903 Windshield wiper speed control arrangement Helmut Betsch, Gunther Gille, Horst Goertler, Hans Prohaska, Horst Rachner 1986-09-30