CNPC Patents Win Prize for Excellence of China Patent Award (Rigzone)
CNPC Patents Win Prize for Excellence of China Patent Award (Rigzone)
Five CNPC patents were awarded the prizes for excellence at the 10th China Patent Awards Appraisal Activity.
CNPC Patents Win Prize for Excellence of China Patent Award (Rigzone)
Five CNPC patents were awarded the prizes for excellence at the 10th China Patent Awards Appraisal Activity.
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