BE726222A - - Google Patents

Info

Publication number
BE726222A
BE726222A BE726222DA BE726222A BE 726222 A BE726222 A BE 726222A BE 726222D A BE726222D A BE 726222DA BE 726222 A BE726222 A BE 726222A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE726222A publication Critical patent/BE726222A/xx

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
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/032—Spiral stairways supported by a central column

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
BE726222D 1968-12-30 1968-12-30 BE726222A (US06653308-20031125-C00184.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE726222 1968-12-30

Publications (1)

Publication Number Publication Date
BE726222A true BE726222A (US06653308-20031125-C00184.png) 1969-05-29

Family

ID=3854036

Family Applications (1)

Application Number Title Priority Date Filing Date
BE726222D BE726222A (US06653308-20031125-C00184.png) 1968-12-30 1968-12-30

Country Status (5)

Country Link
BE (1) BE726222A (US06653308-20031125-C00184.png)
CH (1) CH510798A (US06653308-20031125-C00184.png)
FR (1) FR2027321A1 (US06653308-20031125-C00184.png)
GB (1) GB1293410A (US06653308-20031125-C00184.png)
LU (1) LU60030A1 (US06653308-20031125-C00184.png)

Also Published As

Publication number Publication date
CH510798A (fr) 1971-07-31
GB1293410A (en) 1972-10-18
LU60030A1 (US06653308-20031125-C00184.png) 1970-02-16
FR2027321A1 (US06653308-20031125-C00184.png) 1970-09-25

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: WILLEMSENS ALBERT-HENDRIK

Effective date: 19881230