CH51158A
(en )
1911-08-01
Process for processing profiled objects
CH56096A
(en )
1912-10-01
Process for cleaning metal objects
FR434158A
(en )
1912-01-26
Process for unstacking and cleaning skins
CH54192A
(en )
1912-05-01
Process for cleaning buildings
CH60548A
(en )
1913-07-16
Process for processing waste paper
CH48976A
(en )
1910-12-16
Process for making objects having metal surfaces bright
CH51258A
(en )
1911-08-16
Process for decorating wall fabrics
CH66774A
(en )
1914-10-01
Process for cleaning metals
CH60778A
(en )
1913-08-16
Process for mincing meat
CH48253A
(en )
1910-10-01
Process for preserving wood
CH51444A
(en )
1911-09-01
Method for lining containers
CH46443A
(en )
1910-03-16
Method of processing grain
CH56652A
(en )
1912-11-16
Process for impregnating long timber
CH43480A
(en )
1909-05-17
Process for coloring aluminum objects
CH40456A
(en )
1908-07-16
Process for dearsenating acids
CH54277A
(en )
1912-05-17
Device for cleaning pipelines
CH66328A
(en )
1914-10-16
Process for liming hides
CH46182A
(en )
1910-02-01
Method of sealing barrels
CH57062A
(en )
1912-12-02
Process for de-enamelling enamelled objects
CH72381A
(en )
1916-05-01
Process for pickling pelts
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
CH50222A
(en )
1911-05-01
Process for purifying cocoa
CH56316A
(en )
1912-10-16
Device for cleaning shop windows
CH50232A
(en )
1911-05-01
Method for producing matrices
CH55754A
(en )
1912-09-02
Process for coloring aluminum foils