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AO American Optical II-80 fiber optic microscope illuminator light 120V 1.5A

American Optical AO Microscope Replacement Part - Eyepiece Lens

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AO American Optical Spencer Stereo Zoom Microscope Lower Main Objective Lens

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Ao American Optical Microscope Illuminator with Arm Assembly

American Optical Model 369 Trasformer + Microscope Illuminator Tested