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R&D Certificates
DHP's base institute for the development of new technology
The Utility Model Registration
The Utility Model Registration
The Utility Model Registration
Certificate of a patent
Certificate of Design Registration
Certificate of a patent
Certificate of a patent
Certificate of a patent
Certificate of a patent
United States Patent
Certificate of a patent (China)
Certificate of a patent
Certificate of a patent
Certificate of a patent
The Utility Model Registration