A general-purpose language originally for interactivesymbolic mathematics by Richard Jenks, Barry Trager, StephenM. Watt and Robert S. Sutor of IBM Research, ca 1971. Itfeatures abstract parametrised data types, multiple inheritance and polymorphism. There were implementationsfor VM/CMS and AIX.
["Scratchpad User's Manual", RA 70, IBM (June 1975)].