CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs
CH51068A
(en )
1911-07-17
Process for the production of artificial stone slabs
CH55503A
(en )
1912-08-16
Process for the production of porous artificial stones
CH51608A
(en )
1911-09-01
Process for the production of artificial stone
CH65491A
(en )
1914-06-16
Process for the production of hollow stones closed on all sides
CH67851A
(en )
1915-01-16
Process for the production of marble-like artificial stone slabs
CH66966A
(en )
1914-11-02
Process for the production of homogeneous pressed concrete piles
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH52149A
(en )
1911-11-01
Process for the production of bodies that imitate wood or stone cuts
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
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH58351A
(en )
1913-03-01
Process for the production of artificial building blocks
CH55315A
(en )
1912-08-01
Process for the production of road surfaces
CH66967A
(en )
1914-11-02
Process for the production of artificial marble
CH57225A
(en )
1912-12-16
Process for the production of artificial marble from hydraulic mortars
CH64663A
(en )
1914-04-16
Process for the production of colored patterned artificial stones
CH53534A
(en )
1912-03-01
Method and device for the production of stone slabs
CH65872A
(en )
1914-07-16
Process for the production of concrete or reinforced concrete piles
CH53033A
(en )
1912-01-16
Process for the production of engobed machine bricks
CH48317A
(en )
1910-10-01
Process for the production of artificial stones interspersed with bubbles
CH53335A
(en )
1912-02-01
Process for the production of hydroquinine