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Maohu Matthew Wang
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Sydney, AU
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last 30 patents
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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
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last 30 patents
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Patent Application
COAL CAVING CYCLE
Publication number
20130187436
Publication date
Jul 25, 2013
Maohu Matthew Wang
E21 - EARTH DRILLING MINING