FI (list display)

  • F23L13/00
  • Construction of valves or dampers for controlling air supply or draught HB CC 3K023
  • F23L13/00@A
  • Emergency shutdown valves for exhaust gas passages HB CC 3K023
  • F23L13/00@Z
  • Others HB CC 3K023
  • F23L13/02
  • .pivoted about a single axis but having no other movement (formed as linked slats each pivoted about an axis F23L 13/08) HB CC 3K023
  • F23L13/04
  • ..with axis perpendicular to face HB CC 3K023
  • F23L13/06
  • .slidable only HB CC 3K023
  • F23L13/08
  • .operating as a roller blind; operating as a venetian blind HB CC 3K023
  • F23L13/10
  • .having a compound movement involving both sliding and pivoting HB CC 3K023
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