intellectual property slider web background, patented protection, copyright reserved or product trademark concept, businessman with light bulb idea locked with padlock for patents - 害羞的 幅插畫檔、美工圖案、卡通及圖標知識財產, 不動產, 智力
vanity and modesty by bernardino luini (italian painter), published 1878 - 害羞的 幅插畫檔、美工圖案、卡通及圖標文藝復興, 女人