AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH58857A
(en )
1913-04-01
Process for the production of artificial stones
CH59610A
(en )
1913-06-02
Process for the production of artificial stones
CH61357A
(en )
1913-09-16
Process for the production of artificial stones
AT63556B
(en )
1914-02-25
Process for the production of artificial sponge.
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
CH58351A
(en )
1913-03-01
Process for the production of artificial building blocks
CH61931A
(en )
1913-10-16
Process for the production of technically usable rubber substitute
CH63602A
(en )
1914-02-02
Process for the production of cartridge cases
CH66860A
(en )
1914-10-16
Process for the production of dihydrocodeine
CH65234A
(en )
1914-06-01
Process for the production of dihydromorphine
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
AT41185B
(en )
1910-02-25
Process for the production of artificial marble.
CH66502A
(en )
1914-09-16
Process for the production of cyanides
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH59641A
(en )
1913-06-02
Process for the production of artificial threads
CH60359A
(en )
1913-07-16
Process for the production of posters
AT78008B
(en )
1919-08-25
Process for the production of artificial stones from porphyry or similar volcanic stones.
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH61698A
(en )
1913-10-16
Process for the preparation of ß-acetyltrimethylenetetramethyldiamine
CH63133A
(en )
1914-01-02
Process for the manufacture of explosives
CH62140A
(en )
1913-11-01
Process for the manufacture of explosives