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  • E02B13/00
    		•  Irrigation ditches, i.e. gravity flow, open channel water distribution systems (other distribution systems for watering or spraying gardens, fields, sports grounds, or the like A01G 25/00) [2] HB CC 2D024
  • E02B13/00,301
    		•  .Irrigation ditches HB CC 2D024
  • E02B13/00,302
    		•  .Ridge members HB CC 2D024
  • E02B13/00,303
    		•  ..Concrete members HB CC 2D024
  • E02B13/00,303@A
    		•  With additional water passages HB CC 2D024
  • E02B13/00,303@B
    		•  Non-slip type HB CC 2D024
  • E02B13/00,303@Z
    		•  Others HB CC 2D024
  • E02B13/00,304
    		•  ..Flexible members HB CC 2D024
  • E02B13/00,304@A
    		•  Non-slip type HB CC 2D024
  • E02B13/00,304@Z
    		•  Others HB CC 2D024
  • E02B13/00,305
    		•  .Installing underground cut-off layers HB CC 2D024
  • E02B13/02
    		•  .Closures for irrigation conduits HB CC 2D024
  • E02B13/02@A
    		•  Automatic type HB CC 2D024
  • E02B13/02@B
    		•  .Float type HB CC 2D024
  • E02B13/02@C
    		•  .Sensor type HB CC 2D024
  • E02B13/02@D
    		•  .Timer type HB CC 2D024
  • E02B13/02@E
    		•  Manual type HB CC 2D024
  • E02B13/02@F
    		•  .Weir plate type HB CC 2D024
  • E02B13/02@G
    		•  .Valve type HB CC 2D024
  • E02B13/02@H
    		•  .Siphon type HB CC 2D024
  • E02B13/02@J
    		•  .Vertically moving tube type HB CC 2D024
  • E02B13/02@Z
    		•  Others HB CC 2D024
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