JS

Joao B. de Castro M. da Silva

PS Petróleo Brasileiro S.A.—Petrobras: 1 patents #235 of 1,087Top 25%
Overall (All Time): #4,123,271 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4232179 Process for preparing ethene Helcio V Valladares Barrocas, Ruy Coutinho de Assis 1980-11-04