Patent classifications
E
FIXED CONSTRUCTIONS
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E04
BUILDING
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E04B
GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
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2/00
Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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E04B2/02
built-up from layers of building elements
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E04B2/28
Walls having cavities between, but not in, the elements; Walls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid
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E04B2/30
using elements having specially designed means for stabilising the position; Spacers for cavity walls
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E04B2/34
by filling material with or without reinforcements in small channels in, or in grooves between, the elements
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