CH68153A
(en )
1915-02-16
Process for the production of fuel
AT74183B
(en )
1918-02-25
Process for the production of artificial stone.
CH61357A
(en )
1913-09-16
Process for the production of artificial 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
AT70872B
(en )
1916-01-10
Process for the production of artificial marble.
CH66000A
(en )
1914-08-01
Process for the production of incandescent bodies
AT69003B
(en )
1915-06-10
Process for the production of artificial center walls for honeycombs.
CH51322A
(en )
1911-08-16
Process for the production of casings for precious stones
CH51068A
(en )
1911-07-17
Process for the production of artificial stone slabs
CH50173A
(en )
1911-05-01
Process for the production of artificial stone slabs
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH63494A
(en )
1914-02-02
Process for the production of components
CH67004A
(en )
1914-11-02
Process for the manufacture of explosives
CH62860A
(en )
1913-12-16
Process for the production of white enamels
CH62594A
(en )
1913-12-01
Process for the production of white enamels
CH65059A
(en )
1914-05-16
Process for the production of white enamels
CH62859A
(en )
1913-12-16
Process for the production of white enamels
CH65058A
(en )
1914-05-16
Process for the production of white enamels
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH65685A
(en )
1914-07-01
Process for the production of rammed asphalt
CH49731A
(en )
1911-03-16
Process for the production of shaped pieces for building purposes
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH72174A
(en )
1916-04-17
Process for the production of enamels
CH51608A
(en )
1911-09-01
Process for the production of artificial stone