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Francois Billard

AI Air Industries: 1 patents #12 of 23Top 55%
Overall (All Time): #4,094,708 of 4,157,543Top 100%
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Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4283223 Process for treating smoke from steel plants — 1981-08-11