FR729625A
(en )
1932-07-28
Apparatus for screening and filtering
FR772902A
(en )
1934-11-08
Improvements in processes and apparatus for blasting or blasting certain materials such as coal
FR765508A
(en )
1934-06-12
Improvements in television processes and apparatus
FR782543A
(en )
1935-06-06
Improvements in apparatus and methods for treating coal or similar materials
FR630563A
(en )
1927-12-05
Improvement in dyeing processes and apparatus
FR746197A
(en )
1933-05-23
Improvements in methods and apparatus for the treatment of molten materials
FR758249A
(en )
1934-01-12
Method and apparatus for cleaning filter layers
FR761309A
(en )
1934-03-16
Method and apparatus for pulverizing coal
FR842545A
(en )
1939-06-14
Improvements in processes and apparatus for treating hydrocarbons
FR771110A
(en )
1934-10-01
Method and apparatus for making ravioli and the like
FR653805A
(en )
1929-03-28
Improvements in methods and apparatus for processing filaments
FR828946A
(en )
1938-06-03
Improvements in methods and apparatus for treating liquids tending to putrefy
FR694436A
(en )
1930-12-03
Improvements in apparatus and methods for treating carbonaceous and other materials
FR559668A
(en )
1923-09-19
Improvements in methods and apparatus for refining petroleum
FR759998A
(en )
1934-02-14
Improvements in processes and equipment for treating hydrocarbons
FR733156A
(en )
1932-10-01
Improvements in hydrocarbon treatment
FR773011A
(en )
1934-11-10
Method and apparatus for treating hydrocarbons
FR752541A
(en )
1933-09-25
Improvements in apparatus for treating solids with gases
FR530496A
(en )
1921-12-23
Improvements in apparatus for treating light rays and the like
FR646423A
(en )
1928-11-12
Improvements in methods and apparatus for treating filaments
FR657874A
(en )
1929-05-28
Improvements to processes and apparatus for treating petroleum
FR819439A
(en )
1937-10-19
Processes and apparatus for annealing
FR733781A
(en )
1932-10-11
Improvements in apparatus for the distillation of coal and similar carbonaceous substances
FR830244A
(en )
1938-07-25
Methods and apparatus for the treatment of sulfur ore
FR639785A
(en )
1928-06-29
Improvements in methods and apparatus for processing filaments