PW

Paul V. Witwicki

CF Charbonnages De France: 1 patents #24 of 57Top 45%
Overall (All Time): #3,914,654 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4968492 Device for feeding fluidizing gas to the openings in a grid for supporting a bed of particles to be fluidized Arnaud Delebarre 1990-11-06