DK49038C
(en )
1934-07-23
Apparatus (drainage plow) for the manufacture of aquifers in the earth.
DK49815C
(en )
1935-01-28
Procedure for the Production of Dihydroresorcin.
DK48844C
(en )
1934-06-04
Apparatus (drainage plow) for the manufacture of stable, water-carrying pipes in the ground without the use of fixed pipe walls.
DK51747C
(en )
1936-06-08
Procedure for Concentrating Heavy Water.
DK55725C
(en )
1939-01-16
Apparatus for Adding Essences to Showers.
DK53047C
(en )
1937-05-03
Foam Formation Apparatus.
DK56188C
(en )
1939-05-22
Procedure for Activating Raw Soil.
DK49319C
(en )
1934-09-24
Apparatus for spreading fertilizer.
DK50924C
(en )
1935-11-18
Wastewater Treatment Procedure.
DK53195C
(en )
1937-06-07
Wastewater Treatment Procedure.
DK50621C
(en )
1935-09-02
Method for Manufacturing Concrete Roads.
DK55481C
(en )
1938-11-21
Apparatus for Manufacturing Soil Lumps for Plant Layers.
DK48271C
(en )
1934-01-15
Procedure for softening water and device therefor.
DK51361C
(en )
1936-03-09
Apparatus for Heating Consumption Water.
ES121623A1
(en )
1931-03-01
Perfection improvements in tar treatment.
DK45932C
(en )
1932-07-18
Setting device for plows.
DK51670C
(en )
1936-05-25
Method of Preparation of Acetoacetanilide.
DK47887C
(en )
1933-10-16
Process for the Extraction of Easily Soluble Derivatives of Pyridine Derivatives.
DK54446C
(en )
1938-03-14
Procedure for Treating Wortwort with Hop Extract.
FR43620E
(en )
1934-07-19
Advanced plow
DK48215C
(en )
1934-01-02
Water Treatment Procedure.
DK50412C
(en )
1935-07-08
Method for Manufacturing Water Resistant Cement.
DK51059C
(en )
1935-12-23
Apparatus for the production of artificial respiration.
DK47063C
(en )
1933-03-13
Procedure for the Extraction of the Oestrus Hormone.
DK45777C
(en )
1932-06-06
Apparatus for spreading gravel and pebbles.