HW

Hans R. Wey

HA H. Weidmann A.G.: 1 patents #2 of 5Top 40%
Overall (All Time): #3,974,067 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4664573 Mine wall support anchor Erwin Isler 1987-05-12