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اختراعات داریوش سمنانی

PATENTS:

  • Yarn Grading Apparatus, IR Patent No.: 38504267, July 2006.
  • Asphalt Grid with Wovent Structure, IR Patent No.: 38504372, July 2006.
  • Geomemberance of reiforced cement composite, IR Patent No.: 38504373, July 2006.
  • Apparatus of heat and moisture measurement, IR Patent No.: 389110151, February 2011.