RB

Rolf Bertram

Overall (All Time): #1,192,937 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9589740 Switch contact with a weight-reduced contact spring Martin Koepsell, Bruno Stenzel 2017-03-07
8053693 Switch contact with a weight-reduced contact spring Martin Koepsell, Bruno Stenzel 2011-11-08
4297151 Method for dividing a strand into slabs Erich Hoffken, Werner Kleine-Kleffmann, Karl-Heinz Abele, Gunter Michalski 1981-10-27
4208039 Device for dividing a strand into slabs Erich Hoffken, Werner Kleine-Kleffmann, Karl-Heinz Abele, Gunter Michalski 1980-06-17