EB

Etienne M. M. de Crespin de Billy

RI Rockwell International: 1 patents #839 of 2,155Top 40%
Overall (All Time): #4,102,909 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4307614 Method and apparatus for characterizing surface flaws utilizing ultrasonic surface waves Bernhard R. Tittmann, Gerard Quentin, Frédéric Cohen Tenoudji, Alain R. Jungman 1981-12-29