Where the owner name is not linked, that owner no longer owns the brand
Technical Examples
A dart and dartboard set, which includes a dart, which is a plastic dart with a flat magnet at the front end, and a dartboard, includes a front fabric panel printed with a score, ring pattern, a back fabric panel, two induction circuit membranes separated by a flexible magnet panel and packed between the front fabric panel and the back fabric panel, and a control circuit board for counting and displaying the score.