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