7
Energy supply units on the basis of regenerative energies; desalination plants; pumps and motors; agricultural implements (not hand-operated); machine couplings and transmissions and apparatus for power transmission and pressure build-up (except for land vehicles); solar cells; wind power apparatus; apparatus with a rotor and gearing mounted on a turret or mast
9
Scientific, nautical, electric, optical, measuring, signalling, checking (supervision) and control apparatus and devices
11
Wasserentsalzungsanlagen; Windenergieanlagen; mit einem Rohr versehene und mit einem Getriebe auf einen Turm oder Mast befestigte Anlagen; Solarzellen; auf der Basis regenerativer Energien arbeitende Vorrichtungen, nämlich Strömungs- und Wellenenergiekraftwerke
42
Construction and planning of the building as well as consulting during construction in the field of energy supply; realisation of developping, testing and research commissions; technical consulting and giving authoratative opinions