Amazon.com: Maiman Desktop 50w Fiber Laser Engraver Machine for Metal Deep Engraving : Everything Else
𝙈𝙧 𝙋𝙖𝙪𝙡 𝙒𝙖𝙡𝙠𝙚𝙧 on Twitter: "#OnThisDay in 1967, American physicist Theodore Maiman was awarded the patent for his ruby laser systems, the worlds first laser. https://t.co/GUfdPemWZ0" / Twitter
Theodore Maiman and the Laser - Engineering and Technology History Wiki