1988-05-31 /bb-bt99m-bb/01/68274k.x19 1988-05-31 /bb-jr93f-bb/19/7,6/ap019/68274k.x19 1988-05-31 /bb-jr93g-bb/19/7,6/ap019/68274k.x19 1989-03-09 /bb-jr93h-bb/19/7,6/ap019/68274k.x19 1989-03-09 /bb-jr93i-bb/19/7,6/ap019/68274k.x19 1989-03-09 /bb-jr93j-bb/19/7,6/ap019/68274k.x19