NEVER STOP EXPLORING

Calculating machines; optical lamps; semi-conductors; quantity indicators, namely, computers, calculators; photographic photocopiers, electrostatic photocopiers, thermic photocopiers; optic correcting lenses; cinematographic cameras; luminous or mechanical signalling panels, namely, LCD panels, electric luminescent display panels; electronic anti-interference devices, namely, signal blockers for jamming electronic signals; lasers not for medical purposes