with means for turning and positioning the gem stones

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Patents Grantslast 30 patents

Information Patent Grant
Automatic gemstone polishing robot
- Patent number 11,904,433
- Issue date Feb 20, 2024
- Freedom Automation Solutions LLP
- Ivan Nikolayevich Sytenko
- B24 - GRINDING POLISHING
Information Patent Grant
Gemstone alignment
- Patent number 9,079,331
- Issue date Jul 14, 2015
- De Beers Centenary AG
- James G. C. Smith
- B24 - GRINDING POLISHING
Information Patent Grant
Application of a processing pin to a gemstone which is to be cut or...
- Patent number 8,815,039
- Issue date Aug 26, 2014
- Paul Wild OHG
- Markus Paul Wild
- B24 - GRINDING POLISHING
Information Patent Grant
Faceting head apparatus for working colored stones
- Patent number 5,297,362
- Issue date Mar 29, 1994
- Gerald L. Wykoff
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
3916573
- Patent number 3,916,573
- Issue date Nov 4, 1975
- B24 - GRINDING POLISHING
Information Patent Grant
3886695
- Patent number 3,886,695
- Issue date Jun 3, 1975
- B24 - GRINDING POLISHING
Information Patent Grant
3650074
- Patent number 3,650,074
- Issue date Mar 21, 1972
- B24 - GRINDING POLISHING
Information Patent Grant
2654979
- Patent number 2,654,979
- Issue date Oct 13, 1953
- B24 - GRINDING POLISHING