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 Alfred GrubstadfiledCriticalAlfred Grubstad
Priority to NO2788/73ApriorityCriticalpatent/NO131162C/no
Priority to NO476673Aprioritypatent/NO133062C/no
Priority to DK363274Aprioritypatent/DK363274A/da
Priority to SE7408885Aprioritypatent/SE7408885L/xx
Priority to FI2085/74Aprioritypatent/FI208574A7/fi
Publication of NO131162BpublicationCriticalpatent/NO131162B/no
Publication of NO131162CpublicationCriticalpatent/NO131162C/no
E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
Landscapes
Engineering & Computer Science
(AREA)
Architecture
(AREA)
Civil Engineering
(AREA)
Structural Engineering
(AREA)
Moulds, Cores, Or Mandrels
(AREA)
Casting Or Compression Moulding Of Plastics Or The Like
(AREA)