Complex sentence: The Jagdpanzer 38 succeeded the open-top "Marder III" (based on the same chassis) in production from April 1944; about 2584 were built until the end of the war.
Split into simpler sentences: The Jagdpanzer 38 succeeded the open-top "Marder III" (based on the same chassis). In production from April 1944; about 2584 were built until the end of the war.