DK23983C
(en )
1919-01-20
Procedure for the production of cement and for the extraction of potassium salts.
DK29197C
(en )
1922-01-23
Machine for the manufacture of pipes of cement and the like.
DK21113C
(en )
1916-03-27
Procedure and Form for Manufacturing Cement Stone.
DK23034C
(en )
1918-04-22
Procedure and Plant for the Manufacture of Decolorizing Coal.
DK21422C
(en )
1916-08-07
Procedure for the production of chalk, putty and plaster.
DK14775C
(en )
1911-07-10
Procedure for the production of artificial stone.
DK22369C
(en )
1917-08-20
Stamping machine for the manufacture of cement pipes and the like.
DK16028C
(en )
1912-06-03
Procedure for the production of artificial stone.
DK20541C
(en )
1915-09-06
Procedure for the production of artificial stone.
DK27323C
(en )
1921-03-21
Procedure for the Production of Glycerin from Sugar.
DK27324C
(en )
1921-03-21
Procedure for the Production of Glycerin from Sugar.
DK27405C
(en )
1921-04-11
Procedure for the Production of Glycerin from Sugar.
DK21519C
(en )
1916-09-18
Procedure for the production of photographic images and etchings.
DK20957C
(en )
1916-01-31
Procedure for the manufacture of bricks, roofing sheets and the like.
DK30122C
(en )
1922-08-28
Method for the production of concentrated nitrous gases.
DK19858C
(en )
1915-02-22
Explosives and Procedures for the Manufacture of the same.
DK21189C
(en )
1916-05-01
Procedure for the production of oxalic acid.
DK29368C
(en )
1922-02-20
Procedure for the production of photographic reliefs.
DK16390C
(en )
1912-09-16
Method for Making Matchboxes and the Like.
DK26540C
(en )
1920-08-30
Procedure for the manufacture of wickerwork articles and the like.
DK17787C
(en )
1913-09-08
Method of Making Cement.
DK24283C
(en )
1919-03-24
Procedure for the production of printing surfaces.
DK21534C
(en )
1916-09-18
Procedure for the manufacture of a scale.
DK27322C
(en )
1921-03-21
Procedure for the Production of Glycerin from Sugar.
DK17392C
(en )
1913-06-09
Procedure for the production of hydrochloric acid and alkali-silico-aluminate.