Scientific, surveying, optical, weighing, measuring, signaling, checking apparatus, namely, load cells, weighing cells, checkweighers, metal detectors, parcel or package volume measuring machines, integrated checkweigher and metal detector, filling scales, carat scales, laboratory scales, and postal scales; static and dynamic weighing apparatus and instruments, namely, scales for weighing parcels or packages, pharmaceuticals, food products, chemicals, gems, and precious metals; electronic control units, namely, control units for controlling the operation of electric motors, control panels; blank magnetic data carriers; blank integration circuit-based data carriers; data card readers; automatic vending machines; coin acceptors and bill acceptors; cash registers; calculators; computers, and parts for all of the aforementioned goods; computer software for controlling and monitoring weighing apparatus, computer software for controlling and monitoring metal detectors, computer software for controlling and monitoring parcel or package volume measuring apparatus, computer software for controlling the transfer of data from a portable data carrier to a data processing device