CH79829A
(en )
1919-01-16
Process for the recovery of iron and steel waste
CH82821A
(en )
1919-10-16
Process for the production of tempered steel fittings
CH78798A
(en )
1918-09-02
Process for the partial tinning of sheet metal
CH57094A
(en )
1912-12-16
Process for case hardening iron and steel objects
CH71811A
(en )
1916-02-16
Process and system for the recycling of waste
AT23795B
(en )
1906-04-10
Process for the refinement of iron ores u. like
AT91033B
(en )
1923-01-25
Process and machine for the production of reinforced concrete pipes and beams.
AT80064B
(en )
1920-02-25
Process for the material refinement of the surface ofProcess for the material refinement of the surface of metal objects. n metal objects.
CH83007A
(en )
1919-11-17
Process and device for the production of tempered fittings from austenitic manganese steels
CH78963A
(en )
1918-09-16
Process and device for the reduction of ores
AT52287B
(en )
1912-02-26
Process for the production of steel.
CH75790A
(en )
1917-09-17
Process for the direct production of fine iron and fine steel from titanium-containing iron ores
CH78400A
(en )
1918-12-02
Process for briquetting fuel waste
CH72381A
(en )
1916-05-01
Process for pickling pelts
CH76434A
(en )
1918-05-16
Process for the heat treatment of composite bodies
AT68041B
(en )
1915-02-25
Process and device for deoxidizing or finishing mild steel.
CH66355A
(en )
1914-09-01
Process for the treatment of chromium-nickel steel alloys
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
AT78480B
(en )
1919-09-25
Process and pan for deoxidizing iron and steel using calcium carbide.
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
CH78055A
(en )
1918-11-01
Method for fastening lateral pipe inserts in chimney walls and chimney stones
AT94142B
(en )
1923-09-10
Process for the production of flares and cartridges.
AT87466B
(en )
1922-02-25
Process for enamelling iron objects.
CH73445A
(en )
1916-10-02
Process for eliminating furnace smoke
CH62831A
(en )
1913-12-16
Method and apparatus for finishing the edges of pieces of leather