Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
지재권은 기업의 혁신을 보호하는 데 중요한 역할을 합니다.jijaegwon-eun gieob-ui hyeogsin-eul bohohaneun de jungyohan yeoghal-eul hamnida.Intellectual property rights play an important role in protecting a company's innovation.