A hooked fabric fastener tape has on one surface of a foundation structure a number of material engaging hooks which have been produced from and by cutting one of loops of synthetic resin threads woven into the foundation structure. One of the hooks is larger in height than the other hook so as to provide...http://www.google.es/patents/US4541154?utm_source=gb-gplus-sharePatente US4541154 - Hooked fabric fastener tape
