CH57813A
(en )
1913-02-01
Process for the production of electric steel mold casting
CH60351A
(en )
1913-07-01
Process for the production of mold plates
CH59460A
(en )
1913-05-16
Process for the production of acid-resistant cast steel
CH74962A
(en )
1917-05-01
Process for the production of gray cast iron
CH53033A
(en )
1912-01-16
Process for the production of engobed machine bricks
CH50097A
(en )
1911-04-17
Process for the production of alloys
CH58958A
(en )
1913-04-16
Process for the production of so-called porous metals
CH52190A
(en )
1911-11-01
Process for the production of oxygen baths
CH52509A
(en )
Process for the production of oxygen baths
CH57546A
(en )
1913-01-16
Process for the production of size
CH65685A
(en )
1914-07-01
Process for the production of rammed asphalt
CH73936A
(en )
1917-05-01
Process for the production of pig iron for foundry purposes
CH68595A
(en )
1915-04-01
Process for the production of magnesium perborate
CH67108A
(en )
1914-11-02
Process for the production of magnesium perborate
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH54358A
(en )
1912-05-17
Process for the production of melt products
CH57533A
(en )
1913-01-16
Process for the production of hydrogen
CH57979A
(en )
1913-02-17
Process for the production of hydrogen
CH63494A
(en )
1914-02-02
Process for the production of components
CH55389A
(en )
1912-08-16
Process for the production of cartridge cases
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH55564A
(en )
1912-08-16
Process for the production of metal paper
CH72640A
(en )
1916-06-16
Process for the production of macroscopic permanent specimens
CH53335A
(en )
1912-02-01
Process for the production of hydroquinine
CH51815A
(en )
1911-09-16
Process for the manufacture of shaped articles