DK30824C
(en )
1922-11-27
Method for making walls of blocks of wood or the like.
FR537857A
(en )
1922-05-31
Chipboard building blocks
CH86357A
(en )
1920-09-01
Stone dowels.
DK30835C
(en )
1922-11-27
Procedure for the manufacture of articles of timber.
DK33431C
(en )
1924-07-07
Method of Making Cement.
DK28552C
(en )
1921-10-03
Auxiliary apparatus for the manufacture of wooden boxes and the like.
DK30620C
(en )
1922-11-06
Procedure for Densification of Wood.
DK30692C
(en )
1922-11-20
Procedure for Densification of Wood.
DK26968C
(en )
1920-11-29
Double stone for the manufacture of walls.
DK31000C
(en )
1922-12-27
Bricks or similar.
DK32613C
(en )
1923-12-10
Procedure for Making Litopon.
DK33140C
(en )
1924-04-28
Procedure for Making Litopone.
DK31406C
(en )
1923-03-12
Procedure for Making Litopon.
DK27083C
(en )
1921-01-10
Procedure for the manufacture of cheap walls of clay or concrete.
DK24398C
(en )
1919-04-14
Wooden board.
DK30661C
(en )
1922-11-13
Procedure for the production of very thin magnesium.
AT90726B
(en )
1923-01-10
Building block.
AT102563B
(en )
1926-02-25
Process for the manufacture of cast sulfur.
DK36632C
(en )
1926-10-04
Procedure for Impregnation of Wood.
DK36846C
(en )
1926-11-29
Procedure for Impregnation of Wood.
DK31531C
(en )
1923-04-09
Procedure for the Production of Petroleum.
FR552599A
(en )
1923-05-03
Advanced building blocks
ES77609A1
(en )
1921-06-01
Foundation platform for the construction of hollow masonry.
DK35036C
(en )
1925-09-21
Procedure for the Production of Paintings.
DK26666C
(en )
1920-09-20
Method for producing double board walls which retain their density despite the shrinkage of the wood.