a specialized magnetically encoded credit card which is normally inactive and, therefore, incapable of authorizing a purchase, which, when swiped through a slot in the card owner's cellphone, is activated by a special process to become active and , therefore capable of authorizing a purchase until a predetemined number of purchases, or a predetermined event occurs; a specialized magnetically encoded debit card which is normally inactive and, therefore, incapable of authorizing a purchase, which, when swiped through a slot in the card owner's cellphone is activated by a special process to become active and, therefore, capable of authorizing a purchase until a predetemined number of purchases, or a predetermined event occurs
Electrical and Scientific Apparatus