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Science / Ludwig Schupmann / Opticians / Schupmann / Reflecting telescope / Telescope / Camera lens / Newtonian telescope / Meniscus corrector / Telescope types / Astronomy / Telescopes


Copyright © 2006 James Daley Published by Willmann-Bell, Inc. P.O. BoxRichmond, VirginiaForeword
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Document Date: 2006-12-12 21:36:39

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