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patents
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Reference and Books

Small Business Guide to Patents Trademarks and Copyrights

$19.95
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Gemology Tools

Registered Gemologist Appraiser Seal

$79.95
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Reference and Books

Emeralds A Passionate Guide

$80.00
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Gemology Tools

ISG Diffraction Grating Spectroscope

$90.00
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Gemology Tools

ISG Gem Dichroscope

$74.00
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Gemology Tools

ISG Professional Jewelers Loupe

$24.95
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Gemology Tools

ISG Chelsea Filter

$39.95
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Gemology Tools

ISG Gem Polariscope

$95.00
refractometer
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Gemology Tools

ISG Gem Refractometer

$595.00
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Microscopes

ISG Travel Microscope

$695.00
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Gemology Tools

ISG-2 Gem Equipment Package

$1,095.00
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Gemology Tools

ISG-1 Gem Equipment Package

$1,595.00