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  • E04F11/00
    		•  Stairways, ramps, or like structures (mounting or marking-off stairways E04F21/26; of temporary construction E04G27/00); Balustrades; Handrails (ladders permanently attached to fixed structures E06C9/00) HB CC 2E301
  • E04F11/00,100
    		•  .Ramps HB CC 2E301
  • E04F11/00,200
    		•  .structure similar to stairways or ramps HB CC 2E301
  • E04F11/02
    		•  .Stairways; Layouts thereof HB CC 2E301
  • E04F11/02,100
    		•  ..Methods for manufacture or construction HB CC 2E301
  • E04F11/02,200
    		•  ..Methods for remodeling HB CC 2E301
  • E04F11/022
    		•  ..characterised by the supporting structure [6] HB CC 2E301
  • E04F11/025
    		•  ...Stairways having stringers [6] HB CC 2E301
  • E04F11/028
    		•  ....having a central stringer [6] HB CC 2E301
  • E04F11/032
    		•  ...Spiral stairways supported by a central column [6] HB CC 2E301
  • E04F11/035
    		•  ...Stairways consisting of a plurality of assembled modular parts without further support [6] HB CC 2E301
  • E04F11/038
    		•  ....each modular part having a load-bearing balustrade part [6] HB CC 2E301
  • E04F11/04
    		•  ..Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible (ship ladders B63B; stairs for aircraft B64F; escalators or moving walkways B66B) HB CC 2E301
  • E04F11/06
    		•  ...collapsible, e.g. folding, telescopic HB CC 2E301
  • E04F11/09
    		•  ..Tread-and-riser units [6] HB CC 2E301
  • E04F11/104
    		•  ..Treads (E04F11/09 takes precedence) [6] HB CC 2E301
  • E04F11/108
    		•  ...of wood [6] HB CC 2E301
  • E04F11/112
    		•  ...of metal [6] HB CC 2E301
  • E04F11/116
    		•  ...of stone, concrete or like material [6] HB CC 2E301
  • E04F11/16
    		•  ...Surfaces thereof; Protecting means for the edges or corners thereof (floor fabrics, fastenings therefor A47G27/00) HB CC 2E301
  • E04F11/16,502
    		•  ....Finishing materials for nosing HB CC 2E301
  • E04F11/16,502@A
    		•  characterised by fastening HB CC 2E301
  • E04F11/16,502@B
    		•  .by gluing HB CC 2E301
  • E04F11/16,502@C
    		•  ..made from single material HB CC 2E301
  • E04F11/16,502@D
    		•  ..made from multiple materials HB CC 2E301
  • E04F11/16,502@E
    		•  ..combination of multiple materials HB CC 2E301
  • E04F11/16,502@F
    		•  .by stoppers HB CC 2E301
  • E04F11/16,502@G
    		•  ..made from single material HB CC 2E301
  • E04F11/16,502@H
    		•  ..made from multiple materials HB CC 2E301
  • E04F11/16,502@J
    		•  ..combination of multiple materials HB CC 2E301
  • E04F11/16,502@K
    		•  .by anchors HB CC 2E301
  • E04F11/16,502@L
    		•  ..made from single material HB CC 2E301
  • E04F11/16,502@M
    		•  ..made from multiple materials HB CC 2E301
  • E04F11/16,502@N
    		•  ..combination of multiple materials HB CC 2E301
  • E04F11/16,502@P
    		•  .mounted using rear surface of step plates, e.g. channel shaped HB CC 2E301
  • E04F11/16,502@Q
    		•  .mounted by folding upon construction HB CC 2E301
  • E04F11/16,502@R
    		•  Layout between nosing material and step plate, finishing material for footstep risers HB CC 2E301
  • E04F11/16,502@S
    		•  with additional functions, e.g. indicating, advertising HB CC 2E301
  • E04F11/16,502@T
    		•  Auxiliary parts for nosing parts HB CC 2E301
  • E04F11/16,502@Z
    		•  Others HB CC 2E301
  • E04F11/17
    		•  ....Surfaces [6] HB CC 2E301
  • E04F11/17,100
    		•  .....finishing materials for tread surfaces HB CC 2E301
  • E04F11/17,100@A
    		•  made from synthetic resins or rubbers HB CC 2E301
  • E04F11/17,100@B
    		•  .with concave and convex formed HB CC 2E301
  • E04F11/17,100@C
    		•  .with anti-slipping material painted or engaged HB CC 2E301
  • E04F11/17,100@D
    		•  .with nosing anti-slipper formed in one-piece HB CC 2E301
  • E04F11/17,100@E
    		•  made of fibrous or wooden materials HB CC 2E301
  • E04F11/17,100@F
    		•  .with concave and convex formed HB CC 2E301
  • E04F11/17,100@G
    		•  .with anti-slipping material painted or engaged HB CC 2E301
  • E04F11/17,100@H
    		•  .with nosing anti-slipper formed in one-piece HB CC 2E301
  • E04F11/17,100@J
    		•  made of stones, ceramics or concrete HB CC 2E301
  • E04F11/17,100@K
    		•  .with concave and convex formed HB CC 2E301
  • E04F11/17,100@L
    		•  .with anti-slipping material painted or engaged HB CC 2E301
  • E04F11/17,100@M
    		•  .with nosing anti-slipper formed in one-piece HB CC 2E301
  • E04F11/17,100@N
    		•  made from multiple materials HB CC 2E301
  • E04F11/17,100@P
    		•  .with concave and convex formed HB CC 2E301
  • E04F11/17,100@Q
    		•  .with anti-slipping material painted or engaged HB CC 2E301
  • E04F11/17,100@R
    		•  .with nosing anti-slipper formed in one-piece HB CC 2E301
  • E04F11/17,100@S
    		•  with additional functions, e.g. indicating, advertising HB CC 2E301
  • E04F11/17,100@Z
    		•  Others HB CC 2E301
  • E04F11/18
    		•  .Balustrades; Handrails (guard-rails on ships B63B;for bridges E01D19/10; for roads E01F13/00, E01F15/00; fences E04H17/00) HB CC 2E301
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