MH

Martha-Catharina Heiliger

📍 Kreuzau, DE: #27 of 64 inventorsTop 45%
Overall (All Time): #2,319,086 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5051039 Hydraulic steel mine prop — 1991-09-24
4820085 Articulating steel cap for underground mining support structures — 1989-04-11