IBM constantly updated its machinery and applications for the Nazis. For example, one series of punch cards was designed to record religion, national origin, and mother tongue, but by creating special columns and rows for Jew, Polish language, Polish nationality, the fur trade as an occupation, and then Berlin, Nazis could quickly cross-tabulate, at the rate of 25,000 cards per hour, exactly how many Berlin furriers were Jews of Polish extraction. Railroad cars, which could take two weeks to locate and route, could be swiftly dispatched in just 48 hours by means of a vast network of punch-card machines. Indeed, IBM services coursed through the entire German infrastructure in Europe.