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ADJUSTABLE RED TRI-LASER APPARATUS	150MM DIAMETER F/27 PCX LENS 4000MM FL	150MM DIAMETER F/27 PMN LENS 4000MM FL
INEXPENSIVE DO IT YOURSELF PROJECTOR	BEGINNERS OPTICAL EXPERIMENT CASE	BI-CONVEX 63MM DIA 125MM FL LENS
KODAK PMN 53MM DIA X 1000MM FL LENS	45MM DIA BY 75MM DIA INEXPENSIVE BCX LENS	DCX EDUCATIONAL CYLINDER LENS 50MM X 40MM X 75MM FL
INEXPENSIVE DCX 75MM DIA X 250MM FL LENS	INEXEXPENSIVE DCX 63.5MM DIA X 200MM FL LENS	DCX 88MM DIA X 215MM FL LENS
150MM DIAMETER F/12.5 PCX LENS 1900MM FL	OPTICAL DEMONSTRATION CASE	MAGNETIC ABSORPTION OPTICAL DISK DISPLAY
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