DK50385C
(en )
1935-07-01
Procedure for Manufacturing the Diket.
DK48061C
(en )
1933-11-27
Method for Manufacturing Bituminous Roofing and Insulating Paper.
DK49296C
(en )
1934-09-24
Method for Manufacturing a Bituminous Pavement Material.
DK48915C
(en )
1934-06-25
Method for Manufacturing Bituminous Roofing and Insulating Paper with Green Surfaces.
DK50453C
(en )
1935-07-22
Method for Manufacturing Bituminous Roofing and Insulating Paper with Green Surfaces.
SU29008A1
(en )
1933-01-31
The method of preparation of roofing tiles
SU33267A1
(en )
1933-11-30
Method of making roofing material
DK47916C
(en )
1933-10-23
Procedure for Making Resitols.
DK53901C
(en )
1937-11-22
Procedure for Laying Roofing felt.
DK49042C
(en )
1934-07-23
Building elements and method and machine for making such.
DK54569C
(en )
1938-04-04
Method for Manufacturing Straw Asphalt Slabs.
DK53286C
(en )
1937-07-05
Method for Manufacturing Insulating Light Stone.
DK50621C
(en )
1935-09-02
Method for Manufacturing Concrete Roads.
DK46840C
(en )
1933-01-30
Method for Manufacturing Roofing Paper with a Metallic Surface.
DK48135C
(en )
1933-12-11
Procedure for Making Waterproof Paper.
DK50888C
(en )
1935-11-11
Method for Manufacturing Straw Asphalt Slabs.
DK49047C
(en )
1934-07-23
Method for Manufacturing an Electrode Structure.
DK54680C
(en )
1938-05-02
Method for Manufacturing Seamless Roofing.
CH167411A
(en )
1934-02-28
Building block.
DK51668C
(en )
1936-05-25
Procedure for Repairing Building Timber.
DK51699C
(en )
1936-06-02
Method for Manufacturing Heat Resistant Insulation Materials.
DK47490C
(en )
1933-06-26
Pipe Insulation Device.
AT134406B
(en )
1933-08-10
Rain cover.
DK48460C
(en )
1934-03-05
Procedure for Making Socks.
DK52255C
(en )
1936-10-05
Method of Making Cement.