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
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
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
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH59641A
(en )
1913-06-02
Process for the production of artificial threads
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH61865A
(en )
1913-10-16
Process and device for the production of molded artificial stone
AT63556B
(en )
1914-02-25
Process for the production of artificial sponge.
CH61931A
(en )
1913-10-16
Process for the production of technically usable rubber substitute
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH57919A
(en )
1913-02-17
Process for the production of artificial lithography stones
CH63602A
(en )
1914-02-02
Process for the production of cartridge cases
CH65234A
(en )
1914-06-01
Process for the production of dihydromorphine
AT78008B
(en )
1919-08-25
Process for the production of artificial stones from porphyry or similar volcanic stones.
CH64663A
(en )
1914-04-16
Process for the production of colored patterned artificial stones
CH55503A
(en )
1912-08-16
Process for the production of porous artificial stones
CH66967A
(en )
1914-11-02
Process for the production of artificial marble
CH66860A
(en )
1914-10-16
Process for the production of dihydrocodeine
CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs