AIRPLANES AND HELICOPTERS; LANDING GEARS FOR AIRCRAFT INCLUDING WHEELS FOR SUCH LANDING GEARS; BRAKING SYSTEMS FOR AIRCRAFT, INCLUDING HYDRAULIC BRAKES, HOSE CONNECTIONS, AND LEVERS; WHEEL BRAKES FOR ALL TYPES OF VEHICLES; RESILIENT STRUTS, LEGS, AND JACKS FOR THE LANDING GEAR OF ARICRAFT; RESILIENT SHOCK ABSORBERS FOR AIRCRAFT AND FOR ALL TYPES OF VEHICLES; TAILSKIDS FOR AIRCRAFT; RADIATORS FOR AIRCRAFT; UNDERCARRIAGE AND FLAPS RETRACTION ASSEMBLIES; MOTOR CARS AND MOTOR COACHES, AND PARTS THEREOF