Ключевые слова: april, background, banner, business, celebration, concept, conceptual, copyright, creative, creativity, day, design, education, icon, idea, ideas concept, illustration, innovation, inspiration, intellectual property, intellectual property day, intellectual property day poster, intellectual property rights, intelligence, international, international intellectual property day, invention, knowledge, lamp, legal, name, ownership, patent, permission, poster, protection, registered, rights, royalties, sign, symbol, thinking, trademark, world, world day, world intellectual property day,