Claudio Silvio Viana Martins

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Niteroi, BR

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Patents Grantslast 30 patents

Information Patent Grant
Method for the thermo-chemical dewaxing of large dimension lines
- Patent number 5,824,160
- Issue date Oct 20, 1998
- Petroleo Brasileiro S.A.-Petrobras
- Carlos Nagib Khalil
- B08 - CLEANING