FR862843A
(en )
1941-03-17
Method and device for the use of radiant energy, for example for the use of solar energy
FR846895A
(en )
1939-09-27
Method and device for the production of hydraulic energy
NL54438C
(en )
1942-12-15
Method and device for the production of urea
FR837679A
(en )
1939-02-15
Method and device for the production of artificial mists
FR729636A
(en )
1932-07-28
Method and device for energy production
FR833951A
(en )
1938-11-08
Method and device for the production and storage of heat energy
FR841168A
(en )
1939-05-12
Method and device for using the mechanical energy contained in the movement of waves of standing water
FR836834A
(en )
1939-01-26
Method and device for electrolysis
CH247988A
(en )
1947-04-15
Method and device for the rapid production of soap.
FR866434A
(en )
1941-08-12
Indirect use of solar radiation for energy production
FR846095A
(en )
1939-09-08
Installation for natural energy production
FR854355A
(en )
1940-04-11
Method and device for improving the yield of soaps
FR765177A
(en )
1934-06-04
Method and device for energy production
FR880592A
(en )
1943-03-30
Method and device for the production of separators for accumulators
FR972439A
(en )
1951-01-30
Method and device for the recovery of tidal energy
FR1013948A
(en )
1952-08-06
Process for the production of fluorinated alkylene
FR875887A
(en )
1942-10-07
Method and device for the production of magnesium
FR855347A
(en )
1940-05-08
Method and device for the transformation of energy
FR851990A
(en )
1940-01-19
Method and device for the production of magnesium
FR891428A
(en )
1944-03-07
Method and device for producing make-up water for steam power plants
FR850576A
(en )
1939-12-20
Method and device for the production of artificial mists
FR849231A
(en )
1939-11-16
Method and device for the continuous manufacture of reinforced building plates
FR833441A
(en )
1938-10-21
Method and device for the production of solid objects made of fibrous materials
FR977065A
(en )
1951-03-27
Method of establishing a hydraulic structure and hydraulic structure resulting from the application of this process
FR859574A
(en )
1940-12-21
Method and installation for the transformation of electrical oscillations