DK46761C
(en )
1933-01-16
Procedure for Making Yeast.
SU10051A1
(en )
1929-06-29
The method of making school boards
SU18928A1
(en )
1931-01-31
The method of obtaining plastic
DK44507C
(en )
1931-08-17
Procedure for the Production of Vanillin.
SU10411A1
(en )
1929-07-31
Method of preparing adhesive
DK42359C
(en )
1930-06-02
Method for Manufacturing Asphalt-Like Road Construction Materials.
DK39971C
(en )
1929-03-25
Procedure for Making Adjustment Spacers or the Like.
GR2356B
(en )
1929-07-05
ROAD COATING METHOD.
DK39438C
(en )
1928-11-05
Apparatus for cutting asphalt drums or the like.
DK38118C
(en )
1927-11-07
Method for Manufacturing Insulation Materials.
DK42056C
(en )
1930-04-14
Method for Preparing Bituminous Emulsions.
DK42909C
(en )
1930-09-08
Procedure for the production of clichés.
DK40989C
(en )
1929-10-28
Method for Manufacturing Electrical Resistors.
DK42324C
(en )
1930-06-02
Procedure for Repairing Damaged Substances.
GR2579B
(en )
1929-12-20
METHOD AND INSTALLATION FOR GRASTING CEMENT AND SIMILAR SUBSTANCES.
DK41260C
(en )
1929-12-09
Method of Making Wallpaper.
DK40297C
(en )
1929-06-17
Method and apparatus for making cement or the like.
DK42635C
(en )
1930-07-21
Procedure for the manufacture of feedingstuffs.
DK43966C
(en )
1931-04-07
Procedure for the Manufacture of Pavements.
DK41289C
(en )
1929-12-16
Apparatus for Meatballs and the like.
DK40096C
(en )
1929-04-29
Procedure for Improving the Hydraulic Properties of Portland Elements.
GR1374B
(en )
1926-12-30
METHOD FOR THE MANUFACTURE OF PERPOSE BUILDING MATERIALS.
DK42042C
(en )
1930-04-14
Method for Manufacturing an Insulation and Construction Material.
GR1370B
(en )
1926-12-21
METHOD BY - VIEWING - PHOTOGRAPHY.
DK37006C
(en )
1927-01-10
Apparatus for hanging maps and the like.