Oswaldo d. Pereira Jr.

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Jaearepagua, BR

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Patents Grantslast 30 patents

Information Patent Grant
Process for the thermo-chemical cleaning of storage tanks
- Patent number 5,580,391
- Issue date Dec 3, 1996
- Petroleo Brasileiro S.A.-Petrobras
- Zadson d. Franco
- B08 - CLEANING