F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
F16L39/005—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies for concentric pipes
Aerateur pour embouchures de robinets avec attache rapide, pour le raccordement de dispositifs ou ustensiles auxiliaires utilisant l'eau a la sortie de l'aerateur