AT23795B
(en )
1906-04-10
Process for the refinement of iron ores u. like
AT181608B
(en )
1955-04-12
Process for refining metals
AT21614B
(en )
1905-10-10
Process for the preparation of acetylene tetrachloride.
CH45349A
(en )
1909-11-01
Process for the direct production of steel from oxidic iron ores
AT27651B
(en )
1907-02-25
Process for hardening copper and copper alloys.
AT32027B
(en )
1908-02-25
Process for refining metals using metallic calcium.
AT20727B
(en )
1905-07-25
Process for the representation of indigo white.
CH79829A
(en )
1919-01-16
Process for the recovery of iron and steel waste
CH75790A
(en )
1917-09-17
Process for the direct production of fine iron and fine steel from titanium-containing iron ores
AT29751B
(en )
1907-09-10
Process for the extraction of metals based on the Goldschmidt process.
AT46702B
(en )
1911-02-25
Process for the electrodeposition of copper.
AT31929B
(en )
1908-02-25
Process for the production of fusel oil and its components.
AT54816B
(en )
1912-08-10
Process and installation for the continuous tanning of hides.
CH43957A
(en )
1909-07-01
Process for reducing the carbon content of iron
AT46581B
(en )
1911-02-25
Method and device for the production of steel or iron.
CH51149A
(en )
1911-08-01
Process for the production of ductile electrolyte iron
CH48733A
(en )
1910-11-16
Process for the production of low-sulfur iron
CH41606A
(en )
1908-11-02
Process for tinning cast iron
CH45323A
(en )
1909-11-01
Process for the representation of tribromoindigo
CH41717A
(en )
1908-11-16
Process for the representation of tribromoindigo
CH47517A
(en )
1910-07-01
Process for the representation of tribromoindigo
CH48419A
(en )
1910-10-17
Process for the representation of tribromoindigo
CH40999A
(en )
1908-09-16
Process for the representation of tribromoindigo
AT24061B
(en )
1906-04-25
Process for the production of carbon dioxide.
CH44856A
(en )
1909-09-16
Process for the deoxidation of liquid iron in electric arc furnaces