WS

Wilfried Siefer

BG Bergwerksverband Gmbh: 1 patents #90 of 243Top 40%
📍 Heiligenhaus, DE: #54 of 109 inventorsTop 50%
Overall (All Time): #4,040,278 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4468970 Compression measuring device Joachim Leonhardt, Bruno Wagener, Hans Klein, Dieter Orbach 1984-09-04