Beijing Goldtech Co., Ltd.

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and process for extracting arsenic in vacuum
- Patent number 7,534,389
- Issue date May 19, 2009
- Beijing Goldtech Co., Ltd
- Wenzhou Luo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for extracting gold in arsenic-containing concentrate of gold
- Patent number 7,498,006
- Issue date Mar 3, 2009
- Beijing Goldtech Co., Ltd
- Wenzhou Luo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Process for extracting gold in arsenic-containing concentrate of go...
- Publication number 20060005665
- Publication date Jan 12, 2006
- Beijing Goldtech Co., Ltd.
- Wenzhou Luo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Trademarklast 30 trademarks