alfred nobel (1833-1896), swedish chemist, wood engraving, published in 1898 - 發明家 幅插畫檔、美工圖案、卡通及圖標僅男人
sustainability business, eco-friendly business practices, environmental innovation, green business solutions, woman with laptop, light bulb with plant - 發明家 幅插畫檔、美工圖案、卡通及圖標女人, 拯救地球, 可持續發展目標
alessandro volta (1745-1827), italian physicist, wood engraving, published in 1900 - 發明家 幅插畫檔、美工圖案、卡通及圖標
illustration of eilmer (elmer) of malmesbury, 11th century benedictine monk, attempting to fly - 發明家 幅插畫檔、美工圖案、卡通及圖標中古時代
stairs of thought and innovation, isometric businessman running up the ladder of the brain - 發明家 幅插畫檔、美工圖案、卡通及圖標仔細考慮, 人腦
halloween monsters frankenstein, dracula, werewolf, mummy, mad scientist - 發明家 幅插畫檔、美工圖案、卡通及圖標科學怪人 - 怪物, 矢量圖
