Patenting the hoops was impossible and by Labor Day a dozen other firms were turning out imitations under other trademarks.
Patenting the hoops was impossible and by Labor Day a dozen other firms were turning out imitations under other trademarks.
要取得这种玩具的专利权是不可能的，到劳工节时，便已有十多家公司依样仿制，另立商标出售。