CH520849A - Spiral staircase - Google Patents
Spiral staircaseInfo
- Publication number
- CH520849A CH520849A CH150871A CH150871A CH520849A CH 520849 A CH520849 A CH 520849A CH 150871 A CH150871 A CH 150871A CH 150871 A CH150871 A CH 150871A CH 520849 A CH520849 A CH 520849A
- Authority
- CH
- Switzerland
- Prior art keywords
- spiral staircase
- staircase
- spiral
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702004527 DE2004527A1 (en) | 1970-02-02 | 1970-02-02 | Spiral staircase |
Publications (1)
Publication Number | Publication Date |
---|---|
CH520849A true CH520849A (en) | 1972-03-31 |
Family
ID=5761140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH150871A CH520849A (en) | 1970-02-02 | 1971-02-02 | Spiral staircase |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT326335B (en) |
CH (1) | CH520849A (en) |
DE (1) | DE2004527A1 (en) |
NL (1) | NL7101389A (en) |
-
1970
- 1970-02-02 DE DE19702004527 patent/DE2004527A1/en active Pending
-
1971
- 1971-02-02 NL NL7101389A patent/NL7101389A/xx unknown
- 1971-02-02 AT AT85771A patent/AT326335B/en not_active IP Right Cessation
- 1971-02-02 CH CH150871A patent/CH520849A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AT326335B (en) | 1975-12-10 |
DE2004527A1 (en) | 1971-08-12 |
NL7101389A (en) | 1971-08-04 |
ATA85771A (en) | 1975-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |