Electronic telephone switching system

Claim 2

AN ELECTRONIC SWITCHING SYSTEM COMPRISING IN COMBINATION A PLURALITY OF LINES, A SWITCHING NETWORK CONNECTED THERETO, PERMANENT MEMORY FOR STORING SEQUENCES OF ORDERS FOR CONTROLLING SAID SYSTEM AND SAID NETWORK, COMMON CONTROL MEANS INCLUDING AN ORDER REGISTER FOR RECEIVING ORDERS FROM SAID PERMANENT MEMORY, PARITY CHECK MEANS FOR CHECKING ORDERS ENTERED UPON SAID ORDER WORD REGISTER, MEANS RESPONSIVE TO A PREVIOUS ORDER AND TO AN ODD PARITY CHECK SAID PARITY CHECK MEANS FOR REORDERING THE ORDER ENTERED ON SAID ORDER WORD REGISTER FROM SAID PERMANENT MEMORY.

Claim 3

AN ELECTRONIC TELEPHONE SWITCHING SYSTEM COMPRISING IN COMBINATION, A PERMANENT MEMORY FOR STORING SEQUENCES OF ORDERS FOR CONTROLLING SAID SYSTEM, COMMON CONTROL MEANS FOR SENDING CONTROL SIGNALS TO SAID PERMANENT MEMORY, A CATHODE-RAY TUBE INCLUDED IN SAID PERMANENT MEMORY, MEANS RESPONSIVE TO CONTROL SIGNALS RECEIVED THEREBY FOR CHANGING THE LOCATION OF THE BEAM IN SAID CATHODE-RAY TUBE, A TIMER CIRCUIT, MEANS OPERATING CONCURRENTLY WITH THE CHANGE IN DIRECTION OF THE BEAM IN SAID CATHODE-RAY TUBE FOR RESTORING SAID TIMER CIRCUIT TO ITS INITIAL CONDITION AND MEANS RESPONSIVE TO THE OPERATION OF SAID TIMING CIRCUIT FOR DIRECTING THE BEAM WITHIN SAID CATHODE-RAY TUBE TO A PREDETERMINED REST LOCATION.