JR

Jacobus A. Rumphorst

HB Hoogovens Ijmuiden B.V.: 1 patents #7 of 38Top 20%
ZG Zimmermann & Jansen Gmbh: 1 patents #7 of 19Top 40%
📍 Uitgeest, NL: #11 of 24 inventorsTop 50%
Overall (All Time): #4,097,971 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4292993 Closure plate for hot blast slide valves Jacob Felthuis 1981-10-06