DK50453C
(en )
1935-07-22
Method for Manufacturing Bituminous Roofing and Insulating Paper with Green Surfaces.
DK48915C
(en )
1934-06-25
Method for Manufacturing Bituminous Roofing and Insulating Paper with Green Surfaces.
DK48061C
(en )
1933-11-27
Method for Manufacturing Bituminous Roofing and Insulating Paper.
SU47523A1
(en )
1936-06-30
The method of manufacturing thermal insulation mass
SU50016A1
(en )
1936-08-31
Method of making high-refractory bricks
DK50888C
(en )
1935-11-11
Method for Manufacturing Straw Asphalt Slabs.
DK54569C
(en )
1938-04-04
Method for Manufacturing Straw Asphalt Slabs.
DK51699C
(en )
1936-06-02
Method for Manufacturing Heat Resistant Insulation Materials.
DK53166C
(en )
1937-05-31
Method for Manufacturing Porous Building Materials.
DK50621C
(en )
1935-09-02
Method for Manufacturing Concrete Roads.
DK49042C
(en )
1934-07-23
Building elements and method and machine for making such.
DK52343C
(en )
1936-11-16
Method for the manufacture of electrically insulating press pieces with one or more protruding parts.
DK51133C
(en )
1936-01-13
Procedure for Manufacturing Security Paper.
DK51700C
(en )
1936-06-02
Method for Manufacturing Seamless Tiles and Slabs.
DK54680C
(en )
1938-05-02
Method for Manufacturing Seamless Roofing.
DK53286C
(en )
1937-07-05
Method for Manufacturing Insulating Light Stone.
DK51389C
(en )
1936-03-16
Method for Manufacturing Wave Radiators.
DK51444C
(en )
1936-03-23
Method of Making Cement.
DK50925C
(en )
1935-11-18
Roofing.
DK51907C
(en )
1936-07-20
Roofing.
DK52124C
(en )
1936-09-07
Method of Manufacturing Concrete.
DK48313C
(en )
1934-01-29
White Cement Manufacturing Device.
DK54051C
(en )
1937-12-20
Paper Manufacturing Procedure and Machine.
DK51515C
(en )
1936-04-14
Procedure for Manufacturing Fuel.
ES140360A1
(en )
1936-01-16
Method of manufacturing a thermal insulating material.