Der-Hsien Shen

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Content and production method for semi-rigid asphalt concrete
- Patent number 6,000,876
- Issue date Dec 14, 1999
- Der-Hsien Shen
- Der-Hsien Shen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES