This Method and System Invention relates to credit or debit cards of all kinds issued by a bank(s) or financial institution which when issued convey an interest earning savings account opened by the same bank issuing the card. ...http://www.google.com/patents/US20010047342?utm_source=gb-gplus-sharePatent US20010047342 - Credit or debit cards of all kinds to be issued with a bank savings account attched
