CH78308A
(en )
1918-07-01
Process and device for the production of dry fuels
CH82935A
(en )
1919-11-01
Device for the production of moldings
CH80964A
(en )
1919-09-16
Process for the production of high percentage solutions of calcium nitrate
CH79779A
(en )
1919-05-16
Device for the production of repeatless embroidery
CH81318A
(en )
1919-06-02
Process for the production of an acid-resistant and waterproof mass
CH80085A
(en )
1919-06-02
Method and device for the production of cardboard boxes
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH79954A
(en )
1919-01-16
Process for the production of coffee substitutes
AT96138B
(en )
1924-02-25
Process for the production of fuel.
CH79146A
(en )
1918-10-01
Method of making briquettes
AT87482B
(en )
1922-02-25
Process for the production of asbestos slate and the like.
CH79651A
(en )
1918-12-16
Facility for the production of calcium carbide
CH78104A
(en )
1918-10-16
Process for the production of mercury oxide
CH79922A
(en )
1919-06-02
Machine for the production of briquettes
CH82936A
(en )
1919-11-01
Key and method of making the same
CH81445A
(en )
1919-06-16
Process for the evaporation of liquids
CH80969A
(en )
1919-04-16
Process for the production of absorbent fibers for the production of base cardboard for roofing and underlaying cardboard production
CH76063A
(en )
1917-11-01
Method and device for the production of peat and other briquettes
CH80810A
(en )
1919-04-16
Process for the manufacture of locking pins
CH80791A
(en )
1919-04-16
Structure and method of manufacturing the same
CH81137A
(en )
1919-10-16
Process for the production of cardboard boxes
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH78230A
(en )
1918-07-01
Device for the production of briquettes
CH81552A
(en )
1919-11-01
Process for the preparation of 4-methyl-7-chloroisatin
CH80641A
(en )
1919-08-16
Process for the preparation of 7-methylisatin