Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
  • E04F11/02—Stairways; Layouts thereof
  • E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
  • E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
  • E04F11/062—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding
  • E04F11/064—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding with stringers overlapping when folded
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
  • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
  • E04D13/03—Sky-lights; Domes; Ventilating sky-lights
  • E04D13/035—Sky-lights; Domes; Ventilating sky-lights characterised by having movable parts

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Ladders (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5781842

Family Applications (1)

Country Status (3)

• 1970
  • 1970-09-08 DE DE19702044345 patent/DE2044345A1/de active Pending
• 1971
  • 1971-03-12 AT AT132972A patent/AT322183B/de not_active IP Right Cessation
• 1975
  • 1975-10-24 YU YU269075A patent/YU269075A/xx unknown

Also Published As

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