DK46761C
(en )
1933-01-16
Procedure for Making Yeast.
DK38573C
(en )
1928-03-19
Method for Making a Porous or Cellular Cement.
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.
DK43764C
(en )
1931-02-23
Method for Manufacturing Porous Concrete.
DK31916C
(en )
1923-07-02
Method for Manufacturing Porous Building Materials.
DK32764C
(en )
1924-01-28
Method for Manufacturing Porous Building Materials.
DK32877C
(en )
1924-02-18
Method for Manufacturing Porous Building Materials.
DK35324C
(en )
1925-11-30
Method for Manufacturing Porous Concrete.
DK40438C
(en )
1929-07-08
Method for Manufacturing a Porous Building Material.
DK40119C
(en )
1929-05-06
Method for Manufacturing Porous Building Materials.
DK45671C
(en )
1932-05-17
Method for Manufacturing Solid Carbon Blocks.
DK45034C
(en )
1931-12-21
Method for Making Quick-Dry Ink.
DK37564C
(en )
1927-06-07
Procedure for Artificial Aging or Cement Storage.
DK39547C
(en )
1928-12-03
Form for Casting, especially of light, porous Material.
DK37595C
(en )
1927-06-13
Method for Manufacturing Filling Plates.
DK38075C
(en )
1927-10-24
Procedure for the production of cement.
DK43822C
(en )
1931-03-09
Procedure for Making Yeast.
DK37659C
(en )
1927-07-04
Method of Making Cement.
DK55333C
(en )
1938-10-10
Method for Manufacturing Porous Lightweight Concrete.
DK48689C
(en )
1934-04-30
Method for Manufacturing Porous Building or Filling Materials.
DK41260C
(en )
1929-12-09
Method of Making Wallpaper.
DK39998C
(en )
1929-04-02
Procedure for Drying Out Buildings.