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Invention patent certificate
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Invention patent certificate
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Design patent certificate
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Design patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate
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Utility model patent certificate