A security device of a toy stroller includes two bodies each having two passages to respectively receive the upper frame and the lower frame of the toy stroller. Two engaging members of a seat are respectively mounted to the upper frame and adjacent to the two bodies so as to limit the bodies from being...http://www.google.es/patents/US6241274?utm_source=gb-gplus-sharePatente US6241274 - Security device for a foldable toy stroller
