Measuring, detecting, monitoring and controlling apparatus; measuring, detecting, monitoring and controlling apparatus as components and accessories of filtration apparatus and installations; safety, security, protection and signaling apparatus and equipment; safety, security, protection and signaling apparatus and equipment for gas and liquid tanks; safety, security, protection and signaling devices and equipment for filtration devices and systems; electrical and electronic measuring, signaling, control and regulation devices for filtration and refueling systems; electrical and electronic measuring, signaling, control and regulation devices for fuel dispensers, fuel dispensing systems and refueling systems; sensors; sensors for the detection of foreign substances in liquids, in particular in fuel; sensors for the detection of water in fuel; sensors for the detection of oil in water; differential pressure sensors and differential pressure measuring devices and differential pressure measuring systems composed of the aforementioned goods; differential pressure gauges; supply isolators, namely devices for the galvanic isolation of low-voltage circuits; isolating stages, namely devices for the galvanic isolation of field devices for use in the transmission of electrical signals or process information; electrical and electronic fuel filter monitoring apparatus and assemblies thereof; instruments and apparatus for checking the liquid level in fuel tanks, for fuel recirculation and for leak diagnosis; instruments and apparatus for checking the fuel level in fuel tanks, for fuel vapor recovery and for leak diagnosis in fuel tanks; electronic apparatus and instruments for measuring, checking, controlling and monitoring purposes for use with fuel dispensers, for checking the fuel level of fuel tanks, for fuel vapor recovery and for leak diagnosis in fuel tanks; electrical and electronic monitoring equipment; lasers, not for medical purposes; training software; training software in the field of aircraft fuels, aircraft refueling and aircraft refueling equipment; training manuals in electronic form; training manuals in electronic form in the field of aircraft fuels, aircraft refueling and aircraft refueling equipment; software for the management of refueling equipment and for data management of measurement results; magnetic filters.

Air filters for industrial purposes; water filters for industrial purposes; filters for filtering liquids and liquid filtering installations consisting essentially thereof; filters for filtering gases and gas filtering installations consisting essentially thereof; filters for treatment installations; apparatus for filtering water; filters for drinking water; filters for air purifiers; filters and filter cartridges for removing impurities from a liquid stream; commercial and industrial filter units and filter cartridges for removing impurities from a liquid stream; filters for the purification of gases [parts of domestic or commercial installations]; filters for the purification of liquids; industrial installations for the filtration of liquids; backwash filters; filters of metal mesh, metal fibers or porous metal structure for the filtration of liquids and gases; sintered filters; drying and ventilation equipment [air conditioning]; heat exchangers; cooling equipment for liquids; paper filters for industrial purposes; metal filter containers for holding filter elements, coalescing elements and separators for the filtration of liquids or gases.

Apparatus, machines and appliances for aviation; vehicles and aircraft and parts thereof [included in this class].

Printed matter and instructional and teaching material; printed training material; printed training material in the field of filtration; printed training material in the field of aircraft fuels, aircraft refueling and aircraft refueling devices; filtering materials of paper.

Installation, repair and maintenance of filtration apparatus and equipment; repair of filters for machinery, engines or motors; installation, repair and maintenance of filters when used in the conveyance of liquids and liquid, fluid or gaseous media; installation, repair and maintenance of filters for use in the filtration of fuels such as motor fuels.

Filtering of liquids; filtering of gases; treatment and purification of gases and liquids; filtering and filtration services, namely filtering and filtration of liquids, in particular filtration of fuels such as motor fuels; material processing and conversion, namely separating, sieving, absorbing, adsorbing, separating, sedimenting, centrifuging, filtering, precoating, agitating, deaerating and condensing of liquids and gases.

Conducting and organizing training courses; conducting and organizing training courses in the field of filtration; publishing training materials in the field of filtration; conducting and organizing training courses in the field of aviation fuels, aviation refueling and aviation refueling devices; publishing training materials in the field of aviation fuels, aviation refueling and aviation refueling devices.

IT services; software as a service [SaaS] consultancy; software as a service [SaaS]; SaaS [software as a service] with software for data management of measurement results and monitoring of filtration processes; SaaS [software as a service] for the management of filtration equipment and installations; SaaS [Software as a Service] for the management of fuel dispensers, fuel dispensing equipment and refueling equipment; SaaS [Software as a Service] for the management of aerodrome operations by an fixed-base operator [FBO]; testing, authentication and quality control; scientific and technological services; engineering services; engineering design and consultancy; engineering design and consultancy in the field of filtration of gases and liquids; engineering design and consultancy in the field of material processing and conversion, namely separation, sieving, absorption, adsorption, deposition, sedimentation, centrifugation, filtration, precoating, agitation, deaeration and condensation of liquids and gases; testing services for certification of quality or standards; dosing, namely engineering control, control and monitoring of liquid flows; consultancy in the field of filtration technology; filter testing.