I think thats correct. "Terpophon" is the brand, "Tempophon" the company behind that. The Tempophon Company (GmbH) had been founded in Berlin, Germany in April 1914: Purpose of the Company: manufacturing of Alarm clock phonographs! The inventor and joint partner Max Marcus (Berlin) had several patentes on phonographs (and parts) but also one patent on a Alarm clock phonograph dating from May 1914: Maybe they choose the name "Terpophon" for export? To make it a little bit more confusing... At the same time (1914) there had been also a "Veraphon" Company in Berlin, producing the "Chronophon" Alarm Clock phonograph...
