Precious Stone Working - Stone working patents
Jewelry Bench Dust Shield
US 08539940 B2, Sept. 24, 2013, Lee Brian Vosika
A jewelry bench dust shield, comprising:…
Method of Stabilizing Opals
US 08490612 B2, July 23, 2013, Thomas C. Shope, Jr.
A method of processing opals from rhyolite nodules, comprising soaking a rhyolite…
Round Brilliant Cut Gemstone and Method for Cutting the Same
US 08616192 B2, Dec. 31, 2013, Alain Vets
A gemstone, comprising:…
Patentorg has 3 documents under Precious Stone Working Patents.