Electronic clock-calendar

Claim 1

IN COMBINATION WITH AN AUTOMATIC CLOCK AND CALENDAR OF THE TYPE WHEREIN THERE ARE PROVIDED: A FIXED FREQUENCY OSCILLATOR; A PLURALITY OF FREQUENCY DIVIDING CIRCUITS, EACH HAVING AN INPUT TERMINAL AND AN OUTPUT TERMINAL, THE FREQUENCY DIVIDING CIRCUITS BEING CONNECTED IN SERIES, THE OSCILLATOR BEING CONNECTED TO THE INPUT TERMINAL OF THE FIRST FREQUENCY DIVIDING CIRCUIT IN THE SERIES; A PLURALITY OF VISUAL DISPLAY MEANS ADAPTED TO DISPLAY UNITS OF TIME INCLUDING NUMBER OF DAYS, THE DISPLAY MEANS BEING PROVIDED WITH RESET MEANS FOR RECYCLING THE DISPLAY MEANS, THE DISPLAY MEANS BEING SELECTIVELY CONNECTED TO OUTPUT TERMINALS OF THE FREQUNCY DIVIDER CIRCUITS; A FIRST SWITCH HAVING A SINGLE INPUT TERMINAL ON A FIRST SIDE AND TWELVE OUTPUT TERMINALS ON A SECOND SIDE, EACH OF THE TWELVE SWITCH STATES CORRESPONDING TO A MONTH OF THE YEAR; AND A SECOND SWITCH HAVING A SINGLE INPUT TERMINAL ON A FIRST SIDE AND HAVING THIRTH-ONE OUTPUT TERMINALS ON A SECOND SIDE, THE SECOND SWITCH OUTPUT TERMINALS BEING CONNECTED TO THE NUMBER-OF-DAYS DISPLAY RESET MEANS; THE IMPROVEMENT WHICH COMPRISES: A THIRD SWITCH HAVING A SINGLE INPUT TERMINAL AND FOUR OUTPUT TERMINALS, THE THIRD SWITCH BEING CONNECTED TO ADVANCE ONE STATE EACH FULL CYCLE OF THE FIRST SWITCH, THE THIRD SWITCH BEING CONNECTED TO CYCLE THE TWENTY-NINE DAY TERMINAL OF THE SECOND SWITCH EACH FOURTH COMPLETE CYCLE OF THE SECOND SWITCH AND IN THE REMAINING THREE STATES TO CYCLE THE TWENTY-EIGHT DAY TERMINAL OF THE SECOND SWITCH; WHEREBY AN AUTOMATIC VISUAL DISPLAY CLOCK AND CALENDAR IS PROVIDED WHICH CORRECTLY INDICATES THE YEAR, MONTH, DAY OF THE MONTH, INCLUDING MID-CENTURY LEAP YEAR CORRECTION, AND THE CORRECT TIME OF THE DAY, UTILIZING ONLY ONE PULSE SIGNAL SOURCE.