CH74962A
(en )
1917-05-01
Process for the production of gray cast iron
CH73936A
(en )
1917-05-01
Process for the production of pig iron for foundry purposes
CH72355A
(en )
1916-05-01
Process for the production of road surfaces
AT88396B
(en )
1922-05-10
Process for the production of iron-free hard alloys.
CH59460A
(en )
1913-05-16
Process for the production of acid-resistant cast steel
CH72628A
(en )
1916-06-16
Process for the production of antimonies
CH57813A
(en )
1913-02-01
Process for the production of electric steel mold casting
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH73574A
(en )
1916-10-16
Process for the production of oxygen
CH71436A
(en )
1916-01-03
Process for the production of briquettes
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH68153A
(en )
1915-02-16
Process for the production of fuel
CH76038A
(en )
1917-10-16
Process for the production of sodium amide
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH72824A
(en )
1916-07-01
Process for the production of nitrogen compounds
CH72060A
(en )
1916-03-16
Process for the production of metal coatings
CH63494A
(en )
1914-02-02
Process for the production of components
CH68595A
(en )
1915-04-01
Process for the production of magnesium perborate
CH67108A
(en )
1914-11-02
Process for the production of magnesium perborate
CH75891A
(en )
1918-01-02
Process for the production of structural parts from calcium or calcium alloys
CH72958A
(en )
1916-07-17
Process for the production of sodium percarbonate
CH76117A
(en )
1918-04-01
Process for the production of raw iron and gray cast iron from gray cast iron chips
CH65685A
(en )
1914-07-01
Process for the production of rammed asphalt
CH66000A
(en )
1914-08-01
Process for the production of incandescent bodies
AT75547B
(en )
1919-02-25
Process for the production of disinfectants.