7 Hoists and lifting installations for the transport of persons and goods; machine-operated conveying and handling devices, in particular power-operated lifting machines for lifting loads, in particular by utilizing vacuum or magnetism; machine-operated lifting apparatus, in particular lifting apparatus worn on the body in the nature of robotic exoskeleton suits being machines, other than for medical purposes; machines for the force-fit or form-fit gripping of objects, in particular machine-operated clamping grippers, machine operated jaw grippers, machine-operated inside grippers, machine-operated needle grippers; machines for gripping by utilizing vacuum; power-operated lifting machines for lifting loads, namely, vacuum lifting machines featuring suction grippers; power-operated tube lifting machines; machine parts, namely, suction grippers having flexible gripping surfaces, in particular having structures provided on the suction side; machine parts, namely, spring-mounted holders for suction grippers; machine parts, namely, covers for suction grippers; machine parts, namely, large-area suction grippers, in particular for large-area gripping of objects, in particular by utilizing vacuum; material handling machines including a plurality of suction grippers; machine parts, namely, suction spiders; machines for gripping of objects using magnetism; machines for gripping objects by utilizing positive pressure, compressed gas, or compressed air; clamping machines for fixing workpieces during workpiece machining, in particular by utilizing vacuum; clamping devices being parts of machine tools; vacuum-operated pneumatic components being parts of gripping machines; vacuum-operated pneumatic components being parts of industrial robots; vacuum- operated pneumatic components being parts of handling machines in the nature of manipulators for sucking an object and for lifting and displacing this object; machine parts, namely, vacuum generators; pumps and compressors for machines; fans being parts of machines; fans being parts of blowing machines for the compression, exhaustion and transport of gases; compressors for machines for vacuum generation, in particular turbocompressors; machine parts being suction jet pumps and ejectors, in particular basic ejectors, ejector modules, compact ejectors, inline ejectors; diaphragm pump machines; vacuum pumps; ball joints as parts of machines; machine parts, namely, flange connections for pipes; valves being machine parts, valves operated by pressure changes being machine parts, manual slide valves being machine parts, flow valves being machine parts; flow orifice plates being machine parts, throttles for flowing fluids being machine parts; pneumatically operated pressure switches being machine parts; pneumatically operated vacuum switches being machine parts, check valves being machine parts, pressure reducers being machine parts; cocks in the nature of valves of metal being machine parts, force-operated valves being machine parts, motor-operated valves being machine parts, ball valves being machine parts, valve diaphragms being machine parts, rotary inlets being machine parts, vacuum filters being machine parts, pneumatic distributors being machine parts, bellows being machine parts, vacuum seals being machine parts; aprons for machines being machine parts; motors and drives, other than for land vehicles; vacuum pumps and power-operated blowers; electric motors for machines, electrical drives for machines; connection hooks and crane hooks as parts of power- operated lifting machines; cranes, in particular slewing cranes, column-mounted slewing cranes, wall-mounted slewing cranes, overhead travelling cranes; stationary and mobile cranes; gantry cranes; machine-driven hoists, in particular wire rope hoists, chain hoists, belt drives for machines; separators for liquids, water separators; conveyor belts, in particular telescoping conveyor belts, in particular for loading and reloading luggage; handles as parts of mechanically operated machine tools; vacuum accumulators being machine parts, in particular for providing a temporary vacuum supply; component and replacement parts of the aforementioned goods