06
Compressed air piping and pressure tanks of metal; metal
accessories for hoses, i.e. couplings, clamps and nozzles;
safety valves of metal.
07
Compressors, especially screw compressors, oil-free
compressing screw compressors, screw compressors with oil
injection cooling piston compressors, oil-free compressing
piston compressors, oil-lubricated piston compressors;
compressed air piping of metal; compressed air reservoirs
and pressure tanks of metal; complete compressed-air
stations, especially with compressor, motor and cooler;
compressed air devices, compressed air machines, compressed
air tools; compressed air accessories for machines, namely
ball-type stop cocks, air stop valves, quick action stop
valves, condensate release cocks, non-return valves, control
flanges, automatic condensate discharges, oil water
separators, pressure reducers, high-pressure hoses for
elastic connections, compressed-air hoses, one hand
couplings, constant load changing switches; paint spraying
apparatus and paint spraying devices; car lifters
(machines), cranes and hoists, lifting platforms and their
parts; pumps included in this class; pumps for car washes,
machine-run grease devices, automatic machine tools; safety
valves as parts of machines.
09
Pressure gauges, running time meters, pressure switches,
tire gauges.
11
Suction filters for compressors, compressed air filters, air
dryers, compressed air dryers.
17
Compressed air piping, not of metal.
20
Compressed air piping and pressure containers, not of metal;
non-metal tube and hose accessories, namely hose couplings,
hose clamps and hose nozzles; compressed air reservoirs and
pressure tanks, not of metal.
37
Service and maintenance of compressed air stations.
42
Design, planning and engineering of compressed air stations.
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