CH77266A
(en )
1918-04-01
Method for the correction of optical devices and apparatus for its implementation
FR520715A
(en )
1921-06-29
Method and apparatus for the production of yarns
FR482763A
(en )
1917-04-26
Method and apparatus for the manufacture of glass plates
FR495793A
(en )
1919-10-17
Process and apparatus for the manufacture of cyanamide
FR486652A
(en )
1918-04-30
Plowing process and apparatus for its realization
FR490866A
(en )
1919-05-13
Method and apparatus for the combustion of sulfur
FR503483A
(en )
1920-06-11
Method and apparatus for ore reduction
FR513791A
(en )
1921-02-23
Method and apparatus for launching boats
FR481309A
(en )
1916-11-22
Improved process and apparatus for lapping optical and other lenses
FR488959A
(en )
1918-12-03
Method and apparatus for controlling the flow of glass
FR483887A
(en )
1917-08-17
Flexible tube and method and apparatus for its manufacture
FR492516A
(en )
1919-07-10
Method and apparatus for vapor condensation
FR483881A
(en )
1917-08-17
Method and apparatus for the concentration of acids
FR503939A
(en )
1920-06-21
Method and apparatus for the preparation of nitro-celluloses
FR497935A
(en )
1919-12-20
Method and apparatus for refrigeration
FR521624A
(en )
1921-07-16
Method and apparatus for relieving pumps
FR484825A
(en )
1917-11-13
Method and apparatus for the distillation of coal tar
FR497702A
(en )
1919-12-16
Method and devices for secrecy of optical signals
FR523803A
(en )
1921-08-25
Method and apparatus for steering aircraft
FR506902A
(en )
1920-09-01
Method and devices for ore reduction
FR495794A
(en )
1919-10-17
Method and apparatus for the production of hydrocarbons
FR514961A
(en )
1921-03-22
Propulsion process and devices
AU379917B
(en )
1917-09-18
Light dividing means for optical apparatus
FR485039A
(en )
1917-12-04
Method and apparatus for crystallizing margarine
FR519358A
(en )
1921-06-09
Method and device for the treatment of materials by irradiation