FR750552A
(en )
1933-08-12
Improvements in the manufacture and processing of artificial materials
FR876573A
(en )
1942-11-10
Device for eliminating bottlenecks in press manufacturing of ducts or pipes
FR737044A
(en )
1932-12-06
Turning device for the production and processing of construction elements
FR763971A
(en )
1934-05-11
Improvements in the construction and operation of filtration devices
FR837822A
(en )
1939-02-21
Calculating device for addition and subtraction
FR735737A
(en )
1932-11-14
Jaw crusher for the production of chippings and fine elements
FR799543A
(en )
1936-06-15
Material intended for the concrete and rapid study of the calculation
FR837024A
(en )
1939-02-01
Method and apparatus for the manufacture of metal building elements
FR748807A
(en )
1933-07-10
Improvements in the manufacture of hydrocarbons
FR752270A
(en )
1933-09-20
Improvements in the manufacture or processing of aliphatic anhydrides
FR835185A
(en )
1938-12-14
Stereoscopic device for the observation of radiograms and all photographs
FR44332E
(en )
1934-12-24
Improvements in the manufacture of hoods and equipment for the application of said process
FR798834A
(en )
1936-05-27
Improvements in the treatment or manufacture of materials based on cellulose esters
FR731359A
(en )
1932-09-02
Magnification device
FR824747A
(en )
1938-02-15
Apparatus for the treatment of materials capable of flowing freely
FR769243A
(en )
1934-08-22
Apparatus for the production and use of ozone
FR757488A
(en )
1933-12-27
Improvements in the manufacture of tassels, and equipment for the application of the said process
FR831664A
(en )
1938-09-12
Process and device for the manufacture of primary oxyalkylamines
FR799433A
(en )
1936-06-12
Improvements in the manufacture of asbestos-cement objects
FR747239A
(en )
1933-06-13
Improvements in the manufacture of porous agglomerates
FR832518A
(en )
1938-09-28
Fiexible pipe and machine for the manufacture of this pipe
FR835850A
(en )
1939-01-04
Method and apparatus for the manufacture of metal sheets of any curvature
CH222842A
(en )
1942-08-15
Apparatus for the determination of humidity in damp material.
FR749709A
(en )
1933-07-28
Improvements in the manufacture of artificial materials
FR749913A
(en )
1933-08-01
Improvements in the manufacture of artificial materials