The Stenorette Dictating Machine was first introduced in 1952 by the German company Grundig. It was a portable dictation device that used magnetic tape to record and playback audio. The Stenorette Dictating Machine became popular for its compact design and ease of use, and it was widely used in offices and professional settings for dictation purposes. Over the years, Grundig continued to refine and improve the Stenorette line of dictation machines, releasing various models with updated features and technologies.