FR32948E
(en )
1928-03-21
Improvements in the treatment of materials consisting of or containing cellulose derivatives
FR716671A
(en )
1931-12-24
Improvements in the treatment of artificial materials
BE345492A
(en )
1927-11-30
Improvements in the treatment of organic liquids
FR684637A
(en )
1930-06-27
Improvements in the treatment of liquids or organic substances by radiation
FR691210A
(en )
1930-10-02
Improvements in the treatment of catalytic masses
FR635219A
(en )
1928-03-10
Improvements in the treatment of body fluids
FR644157A
(en )
1928-10-03
Device for the treatment of mucous membranes
FR622333A
(en )
1927-05-28
Improvements in the treatment of liquids
FR698935A
(en )
1931-02-06
Improvements in the treatment of residual liquors
FR651605A
(en )
1929-02-25
Improvements in the treatment of fluids by adsorption
FR577485A
(en )
1924-09-05
Improvements in the treatment of liquid hydrocarbons
FR734210A
(en )
1932-10-18
Improvements in the catalytic treatment of organic and inorganic substances
FR671235A
(en )
1929-12-10
Improvements in the treatment of subdivided materials
FR680255A
(en )
1930-04-28
Improvements in the treatment of hydrocarbon materials
FR613687A
(en )
1926-11-26
liquid elevator
FR31960E
(en )
1927-08-27
liquid elevator
FR668406A
(en )
1929-10-31
Improvements in the treatment of phosphatic materials
FR681060A
(en )
1930-05-09
Improvements in the treatment of artificial materials
FR609869A
(en )
1926-08-25
Improvements in the treatment of carbonaceous materials
FR713657A
(en )
1931-10-31
Improvements in the treatment of liquids by irradiation
FR630279A
(en )
1927-11-30
Treatment of cellulosic materials
FR699828A
(en )
1931-02-20
Improvements in the treatment of organic compounds
FR677882A
(en )
1930-03-15
Improvements in the treatment of organic compounds
FR623706A
(en )
1927-06-29
Liquid sprayer
FR625232A
(en )
1927-08-05
Improvements in the treatment of fluids permeable substances