17 Luminous rubber or similar elastic materials, namely, non-electric luminous signal panels, stickers, adhesive tape and gummed tapes for marking and making safe escape routes in buildings and in other means for transport over land, through the air or over the water, as well as for marking obstacles which are not or are hardly visible in the dark; tapes, namely, stickers, adhesive tapes for industrial purposes, and gummed tapes for industrial purposes