Patent classifications
E
FIXED CONSTRUCTIONS
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E04
BUILDING
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E04C
STRUCTURAL ELEMENTS; BUILDING MATERIALS
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5/00
Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
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E04C5/01
Reinforcing elements of metal, e.g. with non-structural coatings
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E04C5/06
of high bending resistance, i.e. of essentially three-dimensional [3D] extent, e.g. lattice girders
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E04C5/065
Light-weight girders, e.g. with precast parts
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