CREATE TABLE table_26389588_1 (primary_cartridge VARCHAR(255), year_of_introduction VARCHAR(255), country_of_origin VARCHAR(255))
If the Country of Origin is Denmark and the year of introduction is 1962, what is the primary cartridge?
    
SQL: SELECT primary_cartridge FROM table_26389588_1 WHERE year_of_introduction = "1962" AND country_of_origin = "Denmark"