Category:Frederico Heloui De Araujo of Rio de Janeiro BR
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Frederico Heloui De Araujo
Frederico Heloui De Araujo from Rio de Janeiro BR has applied for patents in technology areas such as E21B47/005, E21B47/13 with Halliburton Energy Services, Inc..
Patents
Pages in category "Frederico Heloui De Araujo of Rio de Janeiro BR"
The following 2 pages are in this category, out of 2 total.