CH66673A
(en )
1914-10-01
Process for the economic recovery of residues from the incineration of waste
CH64879A
(en )
1914-05-01
Process for the recovery of ashes present in meltable waste
CH64477A
(en )
1914-04-01
Process for purifying hydrogen
CH66774A
(en )
1914-10-01
Process for cleaning metals
CH54307A
(en )
1912-05-01
Procedure for removing rust stains
CH60979A
(en )
1913-09-16
Process for separating the adsorbents from the adsorbents
CH51051A
(en )
1911-07-17
Process for the extraction of solid, purified caustic potash
CH60458A
(en )
1913-07-16
Process for removing soluble salts from glazes
CH43742A
(en )
1909-06-01
Process for the extraction of crushed slag from waste slag
CH75890A
(en )
1917-10-01
Process for detinning tinplate waste
CH68486A
(en )
1915-04-01
Process for the extraction of dry material from liquids
CH70732A
(en )
1915-10-16
Process for gasifying sewer sludge
CH52277A
(en )
1911-11-01
Process for obtaining rosin oil from wood
CH69818A
(en )
1915-07-16
Process for the production of conical springs from steel strips
CH66129A
(en )
1914-08-17
Process for cleaning Twitchell reactive
CH56096A
(en )
1912-10-01
Process for cleaning metal objects
CH52282A
(en )
1911-11-01
Method of purifying water
CH60548A
(en )
1913-07-16
Process for processing waste paper
CH42105A
(en )
1909-01-02
Process for removing scale from boilers
CH55404A
(en )
1912-08-16
Process for the improvement of fluids
CH79838A
(en )
1919-01-16
Process for the production of flat structures from compressible material waste
AT74470B
(en )
1918-07-25
Process for the treatment of residues from petroleum distillation.
CH66545A
(en )
1914-09-16
Process for welding copper
CH58610A
(en )
1913-03-17
Process for removing glass residues from draw containers
CH75323A
(en )
1917-07-02
Process for the recovery of ash components contained in household and commercial waste