FR669710A
(en )
1929-11-20
Improvements to processes and apparatus for oil recovery
FR773068A
(en )
1934-11-10
Method and apparatus for the distillation of solid substances
FR729625A
(en )
1932-07-28
Apparatus for screening and filtering
FR828584A
(en )
1938-05-20
Improvements in method and apparatus for spraying solids
FR820454A
(en )
1937-11-12
Methods and devices for compensating capacitance effects in electrical apparatus
FR815016A
(en )
1937-07-05
Apparatus for measuring deformations in machines
FR778996A
(en )
1935-03-27
Method and apparatus for opening oysters or the like
FR757461A
(en )
1933-12-27
Method and apparatus for the separation of solids by flotation
FR802128A
(en )
1936-08-28
Apparatus for projecting pulverized and molten bodies
FR765293A
(en )
1934-06-05
Method and apparatus for evaporating and cooling liquids
FR639702A
(en )
1928-06-28
Process for preventing explosions in air liquefaction and distillation apparatus
FR817883A
(en )
1937-09-13
Method and device for inking duplicating apparatus
FR761309A
(en )
1934-03-16
Method and apparatus for pulverizing coal
FR828643A
(en )
1938-05-24
Method and apparatus for the separation of light constituents and heavy constituents in fluid suspensions
FR47828E
(en )
1937-07-31
Method and apparatus for developing films
FR802510A
(en )
1936-09-07
Improvements to devices for weighing and delivering materials
FR750643A
(en )
1933-08-14
Method and apparatus for detecting imperfections that the edges of sharp-edged tools are likely to have
FR806087A
(en )
1936-12-07
Method and apparatus for investigating current losses in power lines or circuits
FR772660A
(en )
1934-11-03
Method and device for the cleaning of cans for thin sheets
FR759751A
(en )
1934-02-09
Method and device for detaching the web in cards
FR822382A
(en )
1937-12-29
Method and device for multiple frequency compensation in electroacoustic amplifiers
FR715473A
(en )
1931-12-03
Apparatus for the extraction of solids after settling
FR775619A
(en )
1935-01-05
Device for separating and advancing sheets of paper
FR816982A
(en )
1937-08-21
Micrometric apparatus to facilitate the capture of t waves. s. f.
FR766569A
(en )
1934-06-30
Method and apparatus for decarbonising carbonaceous materials