the jaws remaining parallel to each other during use, e.g. the jaws sliding parallel to each other

Full Title

Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor > with two or more jaws (A45D1/02 takes precedence) > the jaws remaining parallel to each other during use, e.g. the jaws sliding parallel to each other