Scientific, nautical, surveying and electrical apparatus, and instruments (including wireless), photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; coin or counter-freed apparatus; talking machines; cash registers; calculating machines; fire-extinguishing apparatus,

Apparatus and devices for telephotography and television; apparatus and devices for telegraphy and telephony by wire and wireless, particularly receiving sets; discharge tubes in general, particularly radio valves; apparatus and devices for recording, reproducing and amplifying sound, particularly loudspeakers, talking machines and phonographs and parts of all the said articles included in this class,