Electronic registry devices

Claim 1

IN AN ELECTRONIC REGISTRY UNIT, A BISTABLE MUTIVIBRATOR INCLUDING A PAIR OF TRANSISTORS OF THE SAME CONDUCTIVITY TYPE, EACH TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A SOURCE OF SUPPLY POTENTIAL, THE COLLECTOR ELECTRODE OF EACH TRANSISTOR CONNECTED TO ONE TERMINAL OF SAID SUPPLY POTENTIAL THROUGH A FIRST IMPEDANCE MEANS, A PLURALITY OF DIODES CONNECTED BETWEEN THE EMITTER ELECTRODE OF EACH TRANSISTOR AND THE OTHER TERMINAL OF SAID SUPPLY POTENTIAL, A CAPACITOR INTERCONNECTING THE BASE ELECTRODE OF EACH OF SAID TRANSISTORS, SECOND IMPEDANCE MEANS CONNECTING THE BASE ELECTRODE OF EACH TRANSISTOR TO THE OTHER TERMINAL OF SAID SUPPLY POTENTIAL, THIRD IMPEDANCE MEANS CROSS-COUPLING THE COLLECTOR ELECTRODE OF ONE TRANSISTOR TO THE BASE ELECTRODE OF THE OTHER TRANSISTOR, A THIRD TRANSISTOR OF AN OPPOSITE CONDUCTIVITY TYPE OF SAID PAIR OF TRANSISTORS, SAID THIRD TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, A FOURTH IMPEDANCE MEANS CONNECTED BETWEEN THE BASE ELECTRODE OF SAID AND A FIFTH IMPEDANCE MEANS CONNECTED BETWEEN THE TERMINALS OF SAID SUPPLY POTENTIAL, MEANS CONNECTING THE MINALS OF SAID SUPPLY POTENTIAL, MEANS CONNECTING THE EMITTER ELECTRODE OF SAID THIRD TRANSISTOR TO SAID VOLTAGE DIVIDER, THE COLLECTOR ELECTRODE OF SAID THIRD TRANSISTOR CONNECTED TO THE OTHER TERMINAL OF SAID SUPPLY POTENTIAL, A SOURCE OF TRIGGERING PULSES, MEANS CONNECTING SAID TRIGGERING SOURCE TO THE BASE ELECTRODE OF ONE OF SAID PAIR OF TRANSISTORS WHEREBY SAID PAIR OF TRANSISTORS ARE ALTERNATELY SWITCHED FROM ONE STATE OF CONDUCTION TO ANOTHER, SAID CAPACITOR PROVIDING A TIME DELAY WHEREBY TRIGGERING PULSES ARE DELAYED FROM SWITCHING THE CONDUCTIVE STATE OF SAID PAIR OF TRANSISTORS FOR A PREDETERMINED AMOUNT OF TIME, SAID THIRD TRANSISTOR ENERGIZED AND DEENERGIZED IN ACCORDANCE WITH A PARTICLULAR CONDUCTIVE STATE OF ONE OF SAID PAIR OF TRANSISTORS.