CREATE TABLE table_204_882 (id NUMBER, "number" NUMBER, "builder" CLOB, "entered service" CLOB, "withdrawn" CLOB, "notes" CLOB)

what year was number 445 and 446 entered into service ?
SELECT "entered service" FROM table_204_882 WHERE "number" = 445
SELECT "entered service" FROM "table_204_882" WHERE "number" = 445