Methods, systems and computer program products are provided for enabling access to mass transit systems using a financial transaction instrument including reading an identifier including financial payment information from the financial transaction instrument and determining whether the identifier is...http://www.google.com.hk/patents/US20090164375?utm_source=gb-gplus-share專利 US20090164375 - SYSTEMS, METHODS AND COMPUTER PROGRAM PRODUCTS FOR PERFORMING MASS TRANSIT MERCHANT TRANSACTIONS
