Before revision: Symbols There are two symbols of OR gates : the American (ANSI or 'military') symbol and the IEC ('European' or 'rectangular') symbol , as well as the deprecated DIN symbol .
After revision: Symbols There are two logic gate symbols currently representing the OR gate : the American (ANSI or 'military') symbol and the IEC ('European' or 'rectangular') symbol , as well as the deprecated DIN symbol .