US PATENT SUBCLASS 326 / 129
.~.~.~ Complementary transistor logic (CTL)

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326 /   HD   ELECTRONIC DIGITAL LOGIC CIRCUITRY

104  DF  FUNCTION OF AND, OR, NAND, NOR, or NOT {7}
124  DF  .~ Bipolar transistor (e.g., RTL, DCTL, etc.) {5}
128  DF  .~.~ Transistor-transistor logic (TTL) {1}
129.~.~.~ Complementary transistor logic (CTL)

DEFINITION

Classification: 326/129

Complementary transistor logic (CTL):

(under subclass 128) Subject matter wherein the logic function unit includes transistors of opposite conductivity type (e.g., npn and pnp type, etc.).