CH52854A
(en )
1912-01-02
Process for briquetting using sulphite waste liquor
CH60548A
(en )
1913-07-16
Process for processing waste paper
CH63309A
(en )
1914-01-16
Process for the production of briquettes using sulphite waste liquor
CH67915A
(en )
1915-02-01
Process for softening water
CH73107A
(en )
1916-08-16
Process for cleaning sulphite waste liquor
CH54848A
(en )
1912-07-01
Process for bleaching straw with hydrosulfites
CH66122A
(en )
1914-11-16
Process for bleaching tobacco cover sheets
CH51258A
(en )
1911-08-16
Process for decorating wall fabrics
AT57817B
(en )
1913-02-25
Process for preparing printing plates.
CH63551A
(en )
1914-02-02
Apparatus for cleaning laundry
CH66774A
(en )
1914-10-01
Process for cleaning metals
CH53017A
(en )
1912-01-16
Device for washing raw potatoes
CH70732A
(en )
1915-10-16
Process for gasifying sewer sludge
CH53965A
(en )
1912-04-16
Process for purifying liquid hydrocarbons
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
CH51840A
(en )
1911-10-02
Process for dyeing leather
CH66328A
(en )
1914-10-16
Process for liming hides
CH54192A
(en )
1912-05-01
Process for cleaning buildings
CH52094A
(en )
1911-11-01
Process of bleaching by means of oxygen
FR423829A
(en )
1911-04-27
Filtration process
CH53578A
(en )
1912-03-01
Device for emptying mash filters
CH53953A
(en )
1912-04-16
Device for emptying mash filters
CH54277A
(en )
1912-05-17
Device for cleaning pipelines
AT46546B
(en )
1911-02-25
Process for sensitizing cellulose pellets.
CH45137A
(en )
1909-10-16
Process for regenerating printed paper