CH41606A
(en )
1908-11-02
Process for tinning cast iron
AT181608B
(en )
1955-04-12
Process for refining metals
AT46589B
(en )
1911-02-25
Method of welding cast iron.
CH41626A
(en )
1908-11-02
Method of forming cast iron pillars
CH67012A
(en )
1914-11-02
Process for decarburizing metals
CH48976A
(en )
1910-12-16
Process for making objects having metal surfaces bright
AT67999B
(en )
1915-02-25
Process for the manufacture of means for electric welding.
CH44703A
(en )
1909-09-01
Process for the autogenous welding of metals
CH57094A
(en )
1912-12-16
Process for case hardening iron and steel objects
CH41284A
(en )
1908-10-01
Process for preserving chocolate
AT32027B
(en )
1908-02-25
Process for refining metals using metallic calcium.
CH44737A
(en )
1909-09-01
Device for loading trolleys
CH44467A
(en )
1909-08-16
Process for making coal gas ready for dispatch
CH42259A
(en )
1909-01-16
Process for making coal gas ready for dispatch
FR402737A
(en )
1909-10-15
Process for roasting sulphide ore
CH61744A
(en )
1913-10-16
Process for hardening metals
FR395641A
(en )
1909-03-11
Magnetic separator-sorter for ores
FR395917A
(en )
1909-03-23
Metal pickling process
CH43169A
(en )
1909-04-01
Device for winding washing ropes
CH42922A
(en )
1909-03-16
Method for soldering aluminum
CH43657A
(en )
1909-06-01
Method and device for amplifying and changing the timbre of tones reproduced by speaking machines
AT68005B
(en )
1915-02-25
Process for rolling metal.
CH43955A
(en )
1909-07-01
Process for the production of sheet metal hulls with a simply overlapping solder seam
CH43487A
(en )
1909-05-01
Tools for drawing broken lines
AT71586B
(en )
1916-04-25
Process for dewatering perborates.