IC 035. US 100 101 102. G & S: Commercial consulting regarding the planning of crushing, grinding, sizing, classifying and separating devices and plants, in particular to separate substances from liquid or gaseous media by centrifugal force, and with cyclones

IC 037. US 100 103 106. G & S: Installation, maintenance and repair of crushing, grinding, sizing, classifying and separating devices and plants and of devices and plants to separate substances between coarse and fine powder fractions with supporting air or gas with the aid of centrifugal equipment

IC 042. US 100 101. G & S: Technical planning and optimization consultancy of the construction and technical function of crushing, grinding, sizing, classifying and separating devices and plants and of devices and plants to separate substances between coarse and fine powder fractions with supporting air or gas with the aid of centrifugal equipment; technical planning consultancy of machines, devices and plants in the sense of an improvement of the environmental balance and reduction of costs and emissions