Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E04
BUILDING
Load children
E04C
STRUCTURAL ELEMENTS; BUILDING MATERIALS
Load children
1/00
Building elements of block or other shape for the construction of parts of buildings
Load children Filter patents View analytics View as hierarchy
E04C1/40
built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
Load children Filter patents View analytics View as hierarchy
E04C1/41
composed of insulating material and load-bearing concrete, stone or stone-like material
Filter patents View analytics View as hierarchy