What is "kamera-werkstatten"

By the beginning of the twentieth century the photographic industry prospered utilising new manufacturing methods building smaller, lighter and more reliable equipment, using better materials like aluminium and steel rather than wood, brass and leather. After World War I, the camera industry in Dresden surely had the most specialized workforce in that field, comprising several respected brands. It was at this time the Kamera-Werkstätten, K.W. was established in Dresden, Germany.