(under subclass 1) Subject matter wherein the logic operations are limited to those defined by the Boolean algebraic operations of AND, OR, NAND, NOR, or NOT.
SEE OR SEARCH THIS CLASS, SUBCLASS:
6+, for a function of AND, OR, NAND, NOR, or NOT by a superconducting tunneling device.
104+, for functions of AND, OR, NAND, NOR, or NOT in general.