64 PRODUCTION, TECHNOLOGY AND RESEARCH | MT 6416 research and intellectual property | BT1 research | RT aerospace industry [6821] | industrial cooperation [0811] | industrial revolution [6806] | industrial secret [6411] | mechanical engineering
64 PRODUCTION, TECHNOLOGIE ET RECHERCHE | MT 6416 recherche et propriété intellectuelle | BT1 recherche | RT coopération industrielle [0811] | industrie aérospatiale [6821] | industrie mécanique [6821] | prototype [6411] | révolution industriel