AG

Alfred Graff

MA Mannesmannrohren-Werke Ag: 1 patents #1 of 15Top 7%
Overall (2005): #64,030 of 245,428Top 30%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6931931 Device for ultrasonic weld seam testing of longitudinally welded pipes for longitudinal and transversal errors Jürgen Verhoeven, Thomas Marcial Kersting, Ludwig Oesterlein 2005-08-23
6843131 Method of detecting discontinuities on elongated workpieces Friedhelm Schlawne 2005-01-18