Nyfors (current) Alphabetic numeral system Limitation and revocation procedures before the European Patent Office Two pence (British decimal coin) Count of Poitou Conveyor system CHL1 Coping Doomsday argument Activate (organisation) C standard library Lenslet University of Ulm Works of Aristotle Development of the Chinese Nationalist air force (1937–1945) Cadmium cycle Neoplastic transformation