CH73139A
(en )
1916-08-16
Apparatus for producing oxygen from atmospheric air
CH48281A
(en )
1910-10-01
Apparatus for the production of printed strip sections
CH43003A
(en )
1909-03-16
Apparatus for making dowsong gas
CH80818A
(en )
1919-04-01
Process for the production of so-called air embroidery
CH65127A
(en )
1914-05-16
Apparatus for the production of nitrogen oxides
AT96521B
(en )
1924-04-10
Process and apparatus for the production of pure furfural.
CH72306A
(en )
1916-05-01
Device for the production of hollow bodies from flat, flexible structures
CH52898A
(en )
1912-01-02
Process for the liberation of liquefied carbon dioxide from added air
AT80080B
(en )
1920-02-25
Device for separating dust from air and gases Device for separating dust from air and gases. n.
CH55709A
(en )
1912-09-02
Air gas apparatus
CH76806A
(en )
1918-02-01
Process for the production of tobacco substitutes from hops
CH71053A
(en )
1915-11-16
Process for the production of art prints
CH53582A
(en )
1912-03-01
Apparatus for the production of hydrogen peroxide
CH70280A
(en )
1915-09-01
Process for the production of alcohol-free wines
CH76807A
(en )
1918-02-01
Process and device for cleaning air and gases
CH57622A
(en )
1913-01-16
Column apparatus for separating the air
CH48368A
(en )
1910-10-01
Process for the production of autotypical negatives
CH55203A
(en )
1912-07-16
Process for the production of low-nicotine and light tobacco
CH62846A
(en )
1913-12-16
Apparatus for the production of hydrogen peroxide
CH43237A
(en )
1909-04-16
Process for the production of liquid luminous gas from distillation gases
AT80110B
(en )
1920-02-25
Device for the production of photographic equipment for the production of photographic recordings from airplanes. Recordings from airplanes.
CH57295A
(en )
1913-01-02
Process and device for the production of liquid luminous gas without loss of liquefiable gases
CH77941A
(en )
1918-06-01
Process for the production of natural top view images
CH55536A
(en )
1912-08-16
Apparatus for the continuous production of malt coffee
CA102865A
(en )
1907-01-01
Apparatus for ozonizing atmospheric air