CH80396A
(en )
1919-03-01
Process for the production of shoe protectors from wire with bent fastening pins
CH78547A
(en )
1919-01-16
Process for the production of cyanamide solution from calcium cyanamide
CH81775A
(en )
1919-07-16
Process for the production of zinc sulfate from zinc blende
CH80235A
(en )
1919-07-01
Process for the production of shoe wax
CH79489A
(en )
1918-12-02
Process for the production of copper compounds
CH77857A
(en )
1918-06-01
Process for the production of inulin which can be used for therapeutic purposes from plants
CH79491A
(en )
1918-12-02
Process for the production of copper oxide
CH81905A
(en )
1919-08-01
Process for the production of guanidine sulfate from dicyandiamidine sulfate
CH75154A
(en )
1917-06-01
Process for the production of shaped pieces from fodder
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH81325A
(en )
1919-06-02
Process for the production of light, elastic objects for play purposes
CH77364A
(en )
1918-04-01
Process for the production of wooden heels
CH80964A
(en )
1919-09-16
Process for the production of high percentage solutions of calcium nitrate
CH79342A
(en )
1919-03-17
Process for the production of artificial leather
CH79811A
(en )
1919-01-16
Process for the production of artificial leather
CH79296A
(en )
1919-04-01
Process for the production of shaped pieces from magnesia cement
CH79954A
(en )
1919-01-16
Process for the production of coffee substitutes
CH80810A
(en )
1919-04-16
Process for the manufacture of locking pins
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH82981A
(en )
1919-11-01
Process for the production of pulp
CH68153A
(en )
1915-02-16
Process for the production of fuel
AT88396B
(en )
1922-05-10
Process for the production of iron-free hard alloys.
AT82844B
(en )
1921-02-25
Process for the production of roving from short fibers.
CH74792A
(en )
1917-04-16
Process for the production of tungsten wires
CH79339A
(en )
1918-11-01
Process for the preparation of acetaldehyde from acetylene