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Unamed 4/5 inch (Estimated) Stereo lens pair, in brass panel. No Iris Diaphragm – MW Classic Cameras
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Management of lens-iris diaphragm retropulsion syndrome during phacoemulsification. | Semantic Scholar
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Representative results after primary care with temporary iris-diaphragm... | Download Scientific Diagram
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Unamed lens with Iris Diaphragm in a Non-Working Koilos shutter. Glass diameter is 37mm. Shutter diameter is 100mm – MW Classic Cameras
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