CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
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
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH61633A
(en )
1913-10-01
Process for the production of ceiling formwork
CH66966A
(en )
1914-11-02
Process for the production of homogeneous pressed concrete piles
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH54972A
(en )
1912-07-01
Process for the production of plate-shaped objects
CH62767A
(en )
1913-12-16
process for the production of a plaster composed of artificial stones
CH59641A
(en )
1913-06-02
Process for the production of artificial threads
CH65234A
(en )
1914-06-01
Process for the production of dihydromorphine
CH63602A
(en )
1914-02-02
Process for the production of cartridge cases
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
CH66860A
(en )
1914-10-16
Process for the production of dihydrocodeine
CH60351A
(en )
1913-07-01
Process for the production of mold plates
CH55154A
(en )
1912-07-16
Process for the production of concrete beams with cavities
CH64160A
(en )
1914-03-16
Process for the production of a waterproof cement
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
CH66967A
(en )
1914-11-02
Process for the production of artificial marble
CH59153A
(en )
1913-04-16
Process for the production of glycoheptonic acid
AT63556B
(en )
1914-02-25
Process for the production of artificial sponge.
CH65058A
(en )
1914-05-16
Process for the production of white enamels
CH62860A
(en )
1913-12-16
Process for the production of white enamels
CH62594A
(en )
1913-12-01
Process for the production of white enamels