The bringing together, for the benefit of others, of a variety of goods, namely, apparatuses for heating, steam generating, refrigerating, drying, ventilating, water supply and sanitary purposes, installations for air-conditioning and ventilating, scientific, nautical, surveying, photographic, optical, weighing, measuring, signaling, checking, life-saving apparatuses and instruments, apparatuses and instruments for conducting, switching, transforming, accumulating, regulating or controlling e...