CH66774A
(en )
1914-10-01
Process for cleaning metals
CH61744A
(en )
1913-10-16
Process for hardening metals
CH72381A
(en )
1916-05-01
Process for pickling pelts
CH66328A
(en )
1914-10-16
Process for liming hides
AT68005B
(en )
1915-02-25
Process for rolling metal.
CH61994A
(en )
1913-11-01
Device for holding barrels
CH74761A
(en )
1917-04-02
Process for welding embedded rails or other fixed workpieces
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
CH56096A
(en )
1912-10-01
Process for cleaning metal objects
CH51312A
(en )
1911-08-16
Process for refining metal alloys
CH41606A
(en )
1908-11-02
Process for tinning cast iron
CH68606A
(en )
1915-04-01
Method for hardening cotton oil
CH66122A
(en )
1914-11-16
Process for bleaching tobacco cover sheets
CH64302A
(en )
1914-03-16
Method for sealing vessels
CH61715A
(en )
1913-10-16
Procedure for mounting clichés
AT71586B
(en )
1916-04-25
Process for dewatering perborates.
CH60976A
(en )
1913-09-01
Process for bleaching flour
CH66888A
(en )
1914-10-16
Method of spraying barrels
CH59169A
(en )
1913-05-02
Process for tanning rabbit fur
CH68860A
(en )
1915-05-01
Device for polishing metal goods by means of polishing bodies
AT71280B
(en )
1916-02-25
Process for mechanical digestion of grain.
AT74179B
(en )
1918-02-25
Process for briquetting fine-grained materials for metallurgical purposes.
CH64477A
(en )
1914-04-01
Process for purifying hydrogen
CH63551A
(en )
1914-02-02
Apparatus for cleaning laundry
CH57094A
(en )
1912-12-16
Process for case hardening iron and steel objects