CH79954A
(en )
1919-01-16
Process for the production of coffee substitutes
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH77364A
(en )
1918-04-01
Process for the production of wooden heels
CH79342A
(en )
1919-03-17
Process for the production of artificial leather
CH79811A
(en )
1919-01-16
Process for the production of artificial leather
CH80964A
(en )
1919-09-16
Process for the production of high percentage solutions of calcium nitrate
AT96138B
(en )
1924-02-25
Process for the production of fuel.
CH80235A
(en )
1919-07-01
Process for the production of shoe wax
CH79489A
(en )
1918-12-02
Process for the production of copper compounds
CH79146A
(en )
1918-10-01
Method of making briquettes
CH82599A
(en )
1919-10-01
Process for the preparation of per compounds
CH80833A
(en )
1919-04-01
Process for the production of sodium cyanate
CH82981A
(en )
1919-11-01
Process for the production of pulp
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH80810A
(en )
1919-04-16
Process for the manufacture of locking pins
CH80094A
(en )
1919-02-01
Process for the production of sodium percarbonate
CH79491A
(en )
1918-12-02
Process for the production of copper oxide
CH81137A
(en )
1919-10-16
Process for the production of cardboard boxes
CH80422A
(en )
1919-03-01
Process for the production of metal bodies
CH81895A
(en )
1919-08-01
Process for the production of paintings on cut pieces of fabric
CH79801A
(en )
1919-01-16
Process for the production of solid sodium percarbonate
CH80251A
(en )
1919-02-17
Process for the production of concave mirror surfaces
CH81608A
(en )
1919-12-01
Process for the production of a coffee substitute
CH80633A
(en )
1919-08-01
Process for the preparation of 7-chloroisatin