DK35324C
(en )
1925-11-30
Method for Manufacturing Porous Concrete.
DK43764C
(en )
1931-02-23
Method for Manufacturing Porous Concrete.
DK34860C
(en )
1925-08-10
Method for Manufacturing Porous Building Materials.
DK34609C
(en )
1925-06-15
Method for Manufacturing Porous Building Materials.
DK35244C
(en )
1925-11-09
Method for Manufacturing Porous Building Materials.
DK37169C
(en )
1927-02-21
Method for Manufacturing Porous Building Materials.
DK39323C
(en )
1928-10-01
Method for Manufacturing Bituminous Concrete.
DK32764C
(en )
1924-01-28
Method for Manufacturing Porous Building Materials.
DK32877C
(en )
1924-02-18
Method for Manufacturing Porous Building Materials.
DK31916C
(en )
1923-07-02
Method for Manufacturing Porous Building Materials.
DK40438C
(en )
1929-07-08
Method for Manufacturing a Porous Building Material.
DK46143C
(en )
1932-09-05
Method for Manufacturing Bladder Concrete.
DK40119C
(en )
1929-05-06
Method for Manufacturing Porous Building Materials.
DK43696C
(en )
1931-02-09
Method of Manufacturing Concrete.
DK38573C
(en )
1928-03-19
Method for Making a Porous or Cellular Cement.
DK36791C
(en )
1926-11-15
Procedure for Manufacturing Cement by Wet Road.
DK38029C
(en )
1927-10-03
Method for Manufacturing Impregnated Wood.
DK37476C
(en )
1927-05-16
Concrete slab for building use and method for manufacturing the same.
DK37069C
(en )
1927-01-31
Procedure for Manufacturing Piles.
DK42359C
(en )
1930-06-02
Method for Manufacturing Asphalt-Like Road Construction Materials.
DK45671C
(en )
1932-05-17
Method for Manufacturing Solid Carbon Blocks.
DK34114C
(en )
1925-02-09
Concrete building board.
DK37659C
(en )
1927-07-04
Method of Making Cement.
DK38451C
(en )
1928-02-20
Element for Manufacturing Walls in Buildings.
DK27023C
(en )
1920-12-20
Procedure for Manufacturing Gypsum Concrete.