The “Kuipers” light spot projector (U.S.A. Pat. 2589824)

✍ Scribed by B. Scherpbier

• Book ID: 104160789
• Publisher: Elsevier Science
• Year: 1954
• Weight: 318 KB
• Volume: 11
• Category: Article
• ISSN: 0031-8663
• DOI: 10.1016/s0031-8663(54)80012-3