CH59100A
(en )
1913-04-16
Device for the production of artificial stones
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH68446A
(en )
1915-03-16
Molding box for the production of artificial stones
CH54275A
(en )
1912-05-17
Form for the production of curved ceiling stones
CH51388A
(en )
1911-09-01
Method and device for the production of artificial stones
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH61865A
(en )
1913-10-16
Process and device for the production of molded artificial stone
CH57919A
(en )
1913-02-17
Process for the production of artificial lithography stones
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
CH64663A
(en )
1914-04-16
Process for the production of colored patterned artificial stones
CH55344A
(en )
1912-08-01
Process for the production of artificial threads
CH73661A
(en )
1916-11-01
Device for the production of concrete steps
CH71563A
(en )
1916-01-17
Molding box for the production of artificial stones
CH74730A
(en )
1917-04-02
Device for making ropes
CH57701A
(en )
1913-02-01
Process for the production of agents against plant pests
CH63578A
(en )
1914-02-02
Device for the production of black lead
CH74229A
(en )
1917-02-01
Method and device for the production of soap powder
CH55503A
(en )
1912-08-16
Process for the production of porous artificial stones
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH63782A
(en )
1914-02-16
Device for the production of artificial building blocks
CH59001A
(en )
1913-04-16
Method and device for the production of artificial railways
CH57546A
(en )
1913-01-16
Process for the production of size
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.