DK27083C
(en )
1921-01-10
Procedure for the manufacture of cheap walls of clay or concrete.
ES79713A1
(en )
1922-02-01
The manufacture of reinforced concrete beams.
DK33702C
(en )
1924-09-29
Casting for the manufacture of cement windows.
DK33205C
(en )
1924-05-12
Procedure for casting moldings of magnesia cement or the like.
FR585035A
(en )
1925-02-19
Brick for ceilings
DK30824C
(en )
1922-11-27
Method for making walls of blocks of wood or the like.
DK24971C
(en )
1919-09-08
Fleet or other Vessel of Concrete.
FR540366A
(en )
1922-07-10
Reinforced concrete roof tile
FR534688A
(en )
1922-03-30
Formwork system for the construction of concrete cavity walls
FR23012E
(en )
1921-09-20
Formwork facing for concrete structures
GR195B
(en )
1921-11-22
CONSTRUCTION OF PIECES OF CONCRETE MORTAR.
ES69133A1
(en )
1919-03-16
Elements of reinforced concrete floors.
ES76777A1
(en )
1921-03-01
A procedure for the manufacture of porous concrete.
DK33431C
(en )
1924-07-07
Method of Making Cement.
FI10231A
(en )
1924-05-22
Reinforced concrete perforated brick
ES76739A3
(en )
1921-03-01
Manufacturing procedure for concrete or mortar vaults.
DK34626C
(en )
1925-06-22
Device for the construction of insulated air gaps with concrete or similar walls.
DK26968C
(en )
1920-11-29
Double stone for the manufacture of walls.
DK27023C
(en )
1920-12-20
Procedure for Manufacturing Gypsum Concrete.
DK39311C
(en )
1928-10-01
Procedure for the production of cement concrete mixtures.
DK28886C
(en )
1921-11-28
Formstone for Construction of Cavity Walls.
DK28817C
(en )
1921-11-21
Machine for making bricks, blocks and the like of concrete or the like.
FR553071A
(en )
1923-05-12
Hollow brick for ceilings
FR26856E
(en )
1924-03-19
Hollow brick for ceilings
ES77579A1
(en )
1921-06-01
Reinforcement reinforcement for concrete and similar constructions.