Game to teach to read. (Machine-translation by Google Translate, not legally binding)

摘要

"Triple electric plug", characterized in that its body is formed of two parts joined by means of screw and union nut and by having said halves in its interior concavities for housing the terminals and slots to insert the sockets of current these terminals being with their corresponding crossheads fastened to the body by pressure and guidance of the concavities of the body. (Machine-translation by Google Translate, not legally binding)