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 Ernst Dipl Ing BrezinafiledCriticalErnst Dipl Ing Brezina
Application grantedgrantedCritical
Publication of AT183223BpublicationCriticalpatent/AT183223B/en
E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
E04F11/02—Stairways; Layouts thereof
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
E04F11/104—Treads
E04F11/116—Treads of stone, concrete or like material or with an upper layer of stone or stone like material, e.g. ceramics, concrete; of glass or with an upper layer of glass