Category:Topogon lens diagrams
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Media in category "Topogon lens diagrams"
The following 5 files are in this category, out of 5 total.
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Hasselkus & Richmond US2116264A (Topogon-5, 1936).svg 800 × 800; 2 KB
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Rayton US2325275A (Metrogon, 1942).svg 400 × 400; 2 KB
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Richter-Zeiss Topogon (1933).svg 250 × 220; 2 KB
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Topogon.jpg 367 × 215; 22 KB
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Topogon.png 658 × 434; 65 KB