FR582161A
(en )
1924-12-13
Improvements in the distillation or treatment of carbonaceous and other materials
FR561725A
(en )
1923-10-26
Improvements in the treatment of carbonaceous and other materials
FR574961A
(en )
1924-07-22
Improvement in the construction or provision of heaters-economizers
FR725266A
(en )
1932-05-10
Improvements in the treatment of filamentous and other materials
FR37856E
(en )
1931-02-04
Improvements in the manufacture or treatment of textiles or other materials
FR565960A
(en )
1924-02-07
Improvements in the distillation of oil and similar carbonaceous substances
FR586160A
(en )
1925-03-16
Improvements relating to the gasification and distillation of carbonaceous materials
FR717452A
(en )
1932-01-09
Improvements in the manufacture and treatment of textiles or other materials
FR566573A
(en )
1924-02-16
Improvements in cocoon ovens and other applications
FR573793A
(en )
1924-06-30
Improvements to the construction of Archimedean presses or screw pumps
FR735919A
(en )
1932-11-17
Improvements in the manufacture or treatment of textiles and other materials
ES89507A1
(en )
1924-07-16
Improvements in the distillation or treatment of carbonaceous materials and others.
FR593876A
(en )
1925-09-01
Improvements in the construction of gazettes
FR588016A
(en )
1925-04-28
Improvements in the manufacture of emulsions or solutions of tar and equivalent materials
FR574340A
(en )
1924-07-09
Improvements in the destructive distillation of coal and similar carbonaceous substances
FR570559A
(en )
1924-05-03
Improvements in distillation or evaporation of liquids
FR572448A
(en )
1924-06-05
Improvements in the construction of coke ovens
FR593029A
(en )
1925-08-14
Improvements in the distillation of carbonaceous substances
FR575457A
(en )
1924-07-30
Improvements in the preparation of aqueous emulsions of rubber and other similar materials
FR661637A
(en )
1929-07-27
Improvements in the treatment of coal and other carboniferous materials
FR844719A
(en )
1939-07-31
Improvements in the treatment or production of petroleum-type hydrocarbons
FR568758A
(en )
1924-04-01
Improvements in the construction of aviation wings
FR584988A
(en )
1925-02-19
Instrument for mechanically cleaning and refining the epidermis
FR609869A
(en )
1926-08-25
Improvements in the treatment of carbonaceous materials
FR551172A
(en )
1923-03-29
Improvements in the distillation of tar and other similar materials