A knitted material is disclosed having on one side a multiplicity of upstanding hook-like engaging elements suitable for repeated face-to-face engagement and disengagement with a material having a multiplicity of upstanding pile loop-like mating engagement elements. The material has a base knitted fabric...http://www.google.es/patents/US4628709?utm_source=gb-gplus-sharePatente US4628709 - Apparatus and method for producing knitted hook-type fastener material
Apparatus and method for producing knitted hook-type fastener material
