12/1979-04/1981
08/1977-08/1984
08/1980-08/1984
08/1977-04/1981
04/1979-08/1984
08/1977-02/1983
03/1978-02/1983
(7708-8408)BU30,36,40,HU30,40,50,RU30,WU40,50..T