CREATE TABLE table_30492 ("Name" TEXT, "Corporate name" TEXT, "Regional district" TEXT, "Incorporation date  ( city ) " TEXT, "Population  ( 2011 ) " FLOAT, "Population  ( 2006 ) " FLOAT, "Change  ( % ) " TEXT, "Area  ( km\\u00b2 ) " TEXT, "Population density" TEXT)

What is the name of the corporation that incorporated on october 15, 1955?
SELECT "Corporate name" FROM table_30492 WHERE "Incorporation date (city)" = 'October 15, 1955'
SELECT "Corporate name" FROM "table_30492" WHERE "Incorporation date (city)" = 'October 15, 1955'