WP

Wilfried Piefenbrink

WG Wirth Maschinen-Und Bohrgerate-Fabrik Gmbh: 1 patents #1 of 3Top 35%
📍 Erkelenz, DE: #4 of 10 inventorsTop 40%
Overall (1994): #51,520 of 165,921Top 35%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5340199 Method and machine for excavating drifts, tunnels, stopes, caverns or the like Walter Weber, Hermann Hamburger 1994-08-23