DM

Douglas Andrew Marchant

NL New Transducers Limited: 1 patents #33 of 61Top 55%
Overall (All Time): #3,150,268 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8391540 Bending wave acoustic device and method of making thereof David Keith Berriman, Christien Ellis, Martin Colloms, Graham Bank, Neil John Harris 2013-03-05