DK28734C
(en )
1921-11-07
Iron building material for the manufacture of joists in buildings.
DK24580C
(en )
1919-05-26
Building material for Concrete Structures, in particular for floating Concrete Structures.
DK25821C
(en )
1920-04-12
Wall and Brick for the Manufacture of the same.
DK43621C
(en )
1931-01-26
Procedure for the manufacture of cement roof tiles.
FR500487A
(en )
1920-03-13
Building material
FR522447A
(en )
1921-07-30
Amagalme for the manufacture of building materials
DK27023C
(en )
1920-12-20
Procedure for Manufacturing Gypsum Concrete.
DK24842C
(en )
1919-08-11
Procedure for the manufacture of concrete shipbuilding and the like.
DK28424C
(en )
1921-09-12
Process for the production of liquid-tight concrete and the like.
FR495701A
(en )
1919-10-16
Building tile
DK30511C
(en )
1922-10-23
Procedure for the production of cement bricks, limestone or the like.
DK26206C
(en )
1920-06-28
Machine for the manufacture of roof tiles.
FR507414A
(en )
1920-09-15
Building brick
DK23388C
(en )
1918-08-19
Building slab of Concrete.
DK28817C
(en )
1921-11-21
Machine for making bricks, blocks and the like of concrete or the like.
DK28070C
(en )
1921-07-25
Method for Manufacturing Highly Porous Mortar Materials.
GR24B
(en )
1921-02-22
MANUFACTURE OF LIMESTONE BUILDING BUILDINGS OF EXHERRAL LAND.
DK29760C
(en )
1922-06-19
The cement casing for Floors.
DK26968C
(en )
1920-11-29
Double stone for the manufacture of walls.
DK25092C
(en )
1919-09-29
Roof tiles for the manufacture of self-supporting roof constructions.
DK32764C
(en )
1924-01-28
Method for Manufacturing Porous Building Materials.
DK32877C
(en )
1924-02-18
Method for Manufacturing Porous Building Materials.
DK25163C
(en )
1919-10-27
Procedure for the manufacture of cement or concrete walls with one or more air gaps.
DK31916C
(en )
1923-07-02
Method for Manufacturing Porous Building Materials.
FR530527A
(en )
1921-12-24
Building brick