parallelogram type

Full Title

Tents or canopies, in general > Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds > Supporting means, e.g. frames > collapsible, e.g. breakdown type (E04H15/42 takes precedence) > foldable, i.e. having pivoted or hinged means ( E04H15/46 takes precedence) > parallelogram type