42 Design agency services, Development, Implementation, Servicing, Maintenance and repair of electric and electronic measuring, signaling and checking (supervision) apparatus and instruments; design agency services, Development, Implementation, Servicing, Maintenance and repair of apparatus and instruments for conducting, switching, transforming, accumulating, regulating and controlling electricity, in particular rechargeable batteries (accumulators, electric); Design agency services, Development, Implementation, Servicing, Maintenance and repair of apparatus for recording, transmission or reproduction of sound or images; Design agency services, Development, Implementation, Servicing, Maintenance and repair of data processing equipment and computers; Design agency services, Development, Implementation, Servicing, Maintenance and repair of software for the aforesaid goods; Design agency services, Development, Implementation, Servicing, Maintenance and repair of data memories of all kinds; All the aforesaid services in particular for the checking (supervision) of electric charging and discharging processes for electric accumulators