FR627071A
(en )
1927-09-26
Improvements in the treatment of materials consisting of or containing cellulose derivatives
FR635219A
(en )
1928-03-10
Improvements in the treatment of body fluids
BE345492A
(en )
1927-11-30
Improvements in the treatment of organic liquids
FR622333A
(en )
1927-05-28
Improvements in the treatment of liquids
FR636912A
(en )
1928-04-19
Device for the treatment of body cavities
FR656466A
(en )
1929-05-08
Improvements in the treatment of cellulose derivatives
FR651605A
(en )
1929-02-25
Improvements in the treatment of fluids by adsorption
FR684637A
(en )
1930-06-27
Improvements in the treatment of liquids or organic substances by radiation
FR577485A
(en )
1924-09-05
Improvements in the treatment of liquid hydrocarbons
FR609869A
(en )
1926-08-25
Improvements in the treatment of carbonaceous materials
FR681060A
(en )
1930-05-09
Improvements in the treatment of artificial materials
FR644985A
(en )
1928-10-17
Improvements in the treatment of materials consisting of or comprising cellulose derivatives
FR634244A
(en )
1928-02-11
Improvements in the treatment of filter cakes
FR642331A
(en )
1928-08-27
Improvements in the treatment of materials consisting of or containing cellulose derivatives
FR642473A
(en )
1928-08-29
Improvements in the treatment of materials consisting of or containing cellulose derivatives
FR671235A
(en )
1929-12-10
Improvements in the treatment of subdivided materials
FR680255A
(en )
1930-04-28
Improvements in the treatment of hydrocarbon materials
FR668406A
(en )
1929-10-31
Improvements in the treatment of phosphatic materials
FR713657A
(en )
1931-10-31
Improvements in the treatment of liquids by irradiation
FR625232A
(en )
1927-08-05
Improvements in the treatment of fluids permeable substances
FR678399A
(en )
1930-03-21
Improvements in the treatment of materials consisting of or containing cellulose derivatives
FR629947A
(en )
1927-11-19
Improvements in the treatment of metal surfaces
FR639825A
(en )
1928-06-30
Improvements in the treatment of cellulose derivatives
FR636057A
(en )
1928-03-31
Improvements in the treatment of cellulose derivatives
FR627427A
(en )
1927-10-04
Improvements in the treatment of cellulose derivatives