| http://www.w3.org/ns/prov#value | - In spite of the solutions that have already been proposed, a need continues to exist in industry, and in particular in the motor industry, for a coupling to connect together two rigid or semi-rigid tubes or pipes in such a manner as to make it possible to establish a connection that is not only quick, simple, and reliable, but that is also proof against the fluid conveyed thereby, be it a liquid (
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