Filed Dec. 2, 1976

Serial No. 73108788

Registered May 23, 1978

Registration No. 1,091,735

Class [ BADGE READERS, CARD READERS, CARD READER/WRITERS, ] [ MATRIX PINBOARDS, UNIVERSAL PINBOARDS, ] MATRIX ROTARY SWITCHES, MULTI-LAYER ROTARY SWITCHES, MATRIX SLIDE SWITCHES, THUMBWHEEL SWITCHES, PRINTED CIRCUIT BOARD ROTARY SWITCHES, DUAL-IN-LINE PACKAGE SWITCHES, HEXADECIMAL ROTARY SWITCHES, DIP HEADERS, DIP STRIP RECEPTACLES, DUPLEX RECEPTACLES, SWITCH WIRING SYSTEMS-NAMELY, ELECTRICAL TERMINALS, CONNECTORS AND COMPONENTS USED FOR OBTAINING A NUMBER OF SWITCHING COMBINATIONS, ELECTRICAL CIRCUIT ANALYZERS, SPRING SOCKETS FOR PRINTED CIRCUIT BOARDS, TEST PROBE RECEPTACLES FOR PRINTED CIRCUIT BOARDS, TERMINAL BLOCKS AND HOUSINGS, IGNITION TERMINALS, SPARK PLUG TERMINALS, BATTERY TERMINALS, DROP-WIRE SPLICES, ELECTRICAL TAPER PINS AND BLOCKS, CIRCULAR ELECTRICAL CONNECTORS, SPRING SOCKET MOUNTING WAFERS, TERMINALS FOR TERMINATING ANTENNA WIRES, REUSABLE PRINTED CIRCUIT BOARD COMPONENT TEST RECEPTACLES AND TELEPHONE CROSS CONNECTING SYSTEMS-NAMELY, TERMINALS, CONNECTORS AND COMPONENTS USED FOR OBTAINING A NUMBER OF CONNECTING COMBINATIONS; 021; 023; 026; 036; 038