CH41606A
(en )
1908-11-02
Process for tinning cast iron
AT68005B
(en )
1915-02-25
Process for rolling metal.
AT89325B
(en )
1922-09-11
Process for coloring metal surfaces.
CH48976A
(en )
1910-12-16
Process for making objects having metal surfaces bright
FR465561A
(en )
1914-04-20
Metal coating process for propellers
CH57060A
(en )
1912-12-16
Process for blackening objects, especially metal ones
CH56096A
(en )
1912-10-01
Process for cleaning metal objects
CH70775A
(en )
1915-10-16
Process for cutting lines in sheet metal
CH66774A
(en )
1914-10-01
Process for cleaning metals
CH71490A
(en )
1916-01-17
Process for decorating sheet metal
CH43955A
(en )
1909-07-01
Process for the production of sheet metal hulls with a simply overlapping solder seam
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
FR442517A
(en )
1912-09-03
Process for sintering oxidized ores
FR399147A
(en )
1909-06-22
Electro-chemical process for the treatment of teeth
AT71280B
(en )
1916-02-25
Process for mechanical digestion of grain.
CH53895A
(en )
1912-04-01
Device for parallel dressing of the ends of butt-welded workpieces
CH49009A
(en )
1911-01-02
Device for parallel dressing of the ends of butt-welded workpieces
CH44703A
(en )
1909-09-01
Process for the autogenous welding of metals
AT71586B
(en )
1916-04-25
Process for dewatering perborates.
FR402956A
(en )
1909-10-22
Improvements to machines for making metal jugs
CH74359A
(en )
1917-02-16
Process for the production of steel tools for working iron and other hard materials, by casting
AT52287B
(en )
1912-02-26
Process for the production of steel.
CH81224A
(en )
1919-05-16
Metal container for chemicals
ES71864A1
(en )
1920-03-16
A new industrial product consisting of fine sandstone.
CH51158A
(en )
1911-08-01
Process for processing profiled objects