CH79138A
(en )
1919-02-17
Process for the production of reinforced concrete masonry, especially for factory chimneys
CH80786A
(en )
1919-04-01
Method of making masonry
CH81315A
(en )
1919-11-01
Putty
CH74918A
(en )
1917-05-01
Method for moving wall covering tiles
FR501709A
(en )
1920-04-22
Metallocement brick panels
DK25163C
(en )
1919-10-27
Procedure for the manufacture of cement or concrete walls with one or more air gaps.
FR500487A
(en )
1920-03-13
Building material
CH83446A
(en )
1919-12-01
Building construction
FR495701A
(en )
1919-10-16
Building tile
CH78632A
(en )
1919-01-16
Method for applying plaster to be applied wet on plasterboard surfaces
FR507414A
(en )
1920-09-15
Building brick
CH79652A
(en )
1918-12-16
Process for the preparation of a mixture of pyridine bases
CH80928A
(en )
1919-04-16
Procedure for heating rooms
CH83080A
(en )
1919-11-17
Process for the production of concrete-reinforced earth brick masonry
FR497982A
(en )
1919-12-23
Ship building site
FR529067A
(en )
1921-11-23
Flue blocks for buildings and the like
CH80636A
(en )
1919-08-16
Process for the preparation of methyl pseudoisatin
CH78380A
(en )
1918-11-16
Process for the preparation of hydrocodeine
CH78789A
(en )
1918-09-02
Electro-osmotic drainage method
CH81555A
(en )
1919-11-17
Process for the preparation of 5-chloro-7-methylisatin
CH81559A
(en )
1919-11-17
Process for the preparation of 4-6-dichloroisatin
CH81551A
(en )
1919-11-01
Process for the preparation of 4-chloro-7-methylisatin
CH80633A
(en )
1919-08-01
Process for the preparation of 7-chloroisatin
CH80641A
(en )
1919-08-16
Process for the preparation of 7-methylisatin
CH81561A
(en )
1919-11-17
Process for the preparation of 4-chloro-7-methoxyisatin