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n4google.
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isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:7760778
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The fresnel lens 213 positioned innermost is made of, for example, methyl methacrylate-styrene, acryl, polycarbonate or other materials.
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