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CH184218A - Trapdoor. - Google Patents

Trapdoor.

Info

Publication number
CH184218A
CH184218A CH184218DA CH184218A CH 184218 A CH184218 A CH 184218A CH 184218D A CH184218D A CH 184218DA CH 184218 A CH184218 A CH 184218A
Authority
CH
Switzerland
Prior art keywords
trapdoor
Prior art date
Application number
Other languages
Italian (it)
Inventor
Mornaghini Ercole
Original Assignee
Mornaghini Ercole
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mornaghini Ercole filed Critical Mornaghini Ercole
Publication of CH184218A publication Critical patent/CH184218A/en

Links

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
    • E04F11/068—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic telescopic

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
CH184218D 1935-06-05 1935-06-05 Trapdoor. CH184218A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH184218T 1935-06-05

Publications (1)

Publication Number Publication Date
CH184218A true CH184218A (en) 1936-05-31

Family

ID=4432854

Family Applications (1)

Application Number Title Priority Date Filing Date
CH184218D CH184218A (en) 1935-06-05 1935-06-05 Trapdoor.

Country Status (1)

Country Link
CH (1) CH184218A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565778A (en) * 1947-09-25 1951-08-28 Morrison Hackley Concealed stairway
US2815159A (en) * 1952-03-31 1957-12-03 Prec Parts Corp Folding stairway

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565778A (en) * 1947-09-25 1951-08-28 Morrison Hackley Concealed stairway
US2815159A (en) * 1952-03-31 1957-12-03 Prec Parts Corp Folding stairway

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