Steven Chandler

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Sydney, AU

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Patents Grantslast 30 patents

Information Patent Grant
Coal caving cycle
- Patent number 9,068,452
- Issue date Jun 30, 2015
- Yancoal Technology Development PTY Ltd
- Maohu Matthew Wang
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
COAL CAVING CYCLE
- Publication number 20130187436
- Publication date Jul 25, 2013
- Maohu Matthew Wang
- E21 - EARTH DRILLING MINING