Silencers for motors and engines except those for land vehicles as well as for machines; machines for separating target materials from mixtures of materials; metal-processing machines; injection blow moulding machines; machines for mounting chimneys; metal-working machines; machines for shaping; machines for grinding; machines for polishing; Machine tools, namely, powered machines for cutting or shaping or finishing metals or other materials; machine tools the for cutting and forming of materials; motors and engines except motors and engines for land vehicles; catalytic converters; pressure regulators being parts of machines; pressure valves being parts of machines; blowers for the compression, exhaustion and for the transport of gases; blowing engines; regulators being parts of machines; suction blowers; gate and slide valves being parts of machines; valves being parts of machines; thermally and/or motor-controlled exhaust flaps being parts of machines; mechanical tension limiting devices being parts of machines; exhaust system machines for chimneys, consisting of thermally and/or motor-controlled exhaust flaps, of tension limiting devices, of exhaust silencers, exhaust pipes of metal and combustion air throttle valves, of combustion air supply devices and chimney ventilation devices

Electrical controls for machine exhaust systems, namely, chimneys; computer software for the control of exhaust systems and blank data carriers for the aforementioned software for chimneys, flues, for the gas and air purification in chimneys, flues, exhaust systems and air filtering installations

Chimney flues; flue-gas exhausters in the nature of ventilating exhaust fans; regulating accessories, namely, exhaust flaps for gas exhaust pipes and tension limiters for use in chimneys; separators for gas and air purification in chimneys; electrostatic separators for gas purification in chimneys; separators for gas and air scrubbing in chimneys; ventilation units for chimneys; air filtering installations in chimneys; air extraction devices for chimneys; chimney blowers