Automatic registrar

Claim 1

AN AUTOMATIC REGISTRAR SYSTEM COMPRISING A PLURALITY OF TELEPHONE STATIONS, EACH STATION INCLUDING AN AUDIBLE SIGNALING DEVICE, A TELEPHONE TYPE DIAL, A SWITCH, AND A LIGHT; A PLURALITY OF MEMORY UNITS, EACH UNIT INCLUDING A PLURALITY OF LATCH RELAYS EACH HAVING TWO STABLE OPERATING STATES, MEANS FOR GENERATING A CONTINUOUS SIGNAL, MEANS FOR GENERATING AN INTERRUPTED SIGNAL, THE LATCH RELAYS CONNECTING ONE OR THE OTHER OR NEITHER OF THE SIGNAL GENERATING MEANS TO THE OUTPUT OF EACH OF THE MEMORY UNITS ACCORDING TO THE EXISTING STABLE CONDITIONS OF THE LATCH RELAYS IN THE UNIT, A SELECTOR CIRCUIT, RELAY MEANS RESPONSIVE TO THE OPERATION OF ANY OF THE SWITCHES AT THE TELEPHONE STATIONS FOR CONNECTING ONLY AN ASSOCIATED ONE OF THE DIALS TO THE SELECTOR CIRCUIT WHEN A SWITCHIS OPERATED, MEANS INCLUDING THE SELECTOR CIRCUIT FOR CONNECTING THE AUDIBLE SIGNALING DEVICE AND LIGHT AT THE TELEPHONE STATION IN WHICH THE SWITCH IS OPERATED TO THE OUTPUT OF ONE OF THE MEMORY UNITS IN RESPONSE TO A GROUP OF DIGITS DIALED AT THE TELEPHONE STATION, A FUNCTION SELECTOR CIRCUIT, MEANS RESPONSIVE TO AN ADDITIONAL DIGIT DIALED AT THE TELEPHONE STATION FOLLOWING SAID GROUP OF DIGITS FOR SETTING THE FUNCTION SELECTOR CIRCUIT, AND MEANS INCLUDING THE SELECTOR CIRCUIT FOR CONNECTING THE FUNCTION SELECTOR CIRCUIT TO THE LATCH RELAYS OF THE SELECTED MEMORY UNIT, THE FUNCTION SELECTOR CIRCUIT SETTING THE LATCH RELAYS TO ANY ONE OF THE POSSIBLE COMBINATIONS OF STABLE STATES OF THE RELAYS ACCORDING TO THE VALUE OF SAID ADDITIONAL DIGIT.