4000/14000/40000 SERIES, QUAD 2-INPUT NOR GATE, CDIP14, HERMETIC SEALED, CERAMIC, DIP-14
IC 4000/14000/40000 SERIES, DUAL 3-INPUT NOR GATE, PDIP14, PLASTIC, DIP-14, Gate
4000/14000/40000 SERIES, DUAL 4-INPUT NOR GATE, CDIP14, HERMETIC SEALED, CERAMIC, DIP-14