JR

Josef Risthaus

SG Square D Starkstrom Gmbh: 3 patents #2 of 6Top 35%
📍 Gummersbach, DE: #27 of 152 inventorsTop 20%
Overall (All Time): #1,668,020 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4931757 Contactor and/or circuit breaker Helmut Lemmer 1990-06-05
4713636 Circuit-breaker Helmut Lemmer 1987-12-15
4688011 Motor safety switch Helmut Lemmer 1987-08-18