International audience Technolects or specialised languages are conceived as sets of specific linguistic language unique to fields which directly concern human activity spheres. From the angle of specialised languages following my work on innovation in the telecommunications sector, this is no longer a question of vocabulary nor terminology, nor jargon nor professionnal slang. This presentation introduces a new aspect of specialised language in addressing language of conception in its linguistic dimension in reference to the theoritical Concept-Knowledge work of the Ecoles des Mines, Paris.