UNESCO nomenclature for fields of science and technology

3313.21 Petrleum extracting machinery (http://skos.um.es/unesco6/331321)

Maquinaria de extracción de petróleo (es)

Machines pour l'extraction du pétrole (fr)

Concept Schemes (skos:inScheme)

• Proposed international standard nomenclature for fields of science and technology

Broader Concepts (skos:broader)

• 3313 Mechanical Engineering and Technology

Related Concepts (skos:related)

• 3321 Petroleum and coal technology