SELECT DISTINCT T1.Maker FROM CAR_MAKERS AS T1 JOIN MODEL_LIST AS T2 ON T1.Id  =  T2.Maker JOIN CAR_NAMES AS T3 ON T2.model  =  T3.model JOIN CARS_DATA AS T4 ON T3.MakeId  =  T4.id WHERE T4.year  =  '1970';
Find the name of the makers that produced some cars in the year of 1970?
SELECT DISTINCT T1.Maker FROM CAR_MAKERS AS T1 JOIN MODEL_LIST AS T2 ON T1.Id = T2.Maker JOIN CAR_NAMES AS T3 ON T2.model = T3.model JOIN CARS_DATA AS T4 ON T3.MakeId = T4.id WHERE T4.year = '1970 ' ;
select distinct t1 . maker from car_makers as t1 join model_list as t2 on t1 . id = t2 . maker join car_names as t3 on t2 . model = t3 . model join cars_data as t4 on t3 . makeid = t4 . id where t4 . year = value
Find the name of the makers that produced some cars in the year of 1970 ?